Vedic Cosmology - The Planets of the Material Universe

The cosmology and cosmography of the ancient Vedas is awe inspiring to say the least. The more "modern" of the Vedic texts are known to originate from approximately 3000 B.C., thus being the oldest scientific and religious doctrines known to man. The descriptions of our solar system and what modern astronomy has discovered of the visible universe corresponds with the ancient Vedic knowledge, proving that man has had advanced knowledge of astronomy for thousands of years before our modern civilization began. This article describes the Vedic version of planetary systems from the topmost, eternal planets down through the temporary planetary systems within innumerable universes of this material world.

When saying "cosmic manifestation" we speak of two separate worlds, the spiritual and the material. The spiritual planetary systems are eternal, beyond the limits of the material universes, and belong to a "super dimensional" or "anti-material" dimension. These are beyond the limitations of material time and space and therefore beyond our vision, or powers of perception. In these planetary systems there is no occurrence of creation or dissolution, and these planets are unlimited, indestructible, and eternally existing. There are descriptions of these spiritual planets in the vedic literatures, but this article concentrates on those within the material universe.

The material planetary systems are created at some point in time and will be destroyed at another. They are bound by the influences of time and space. Both of these energies (spiritual and material) are of the same divine source called "brahmajyoti", the spiritual light. About 1/4th of this brahmajyoti is covered by the "mahat-tattva", the material energy, where are found innumerable material universes. The 3/4th portion is the eternal spiritual sky. In the spiritual world are two realms of existence, "Goloka-dhama" and "Hari-dhama". The material world has one realm called "Devi-dhama".

Goloka-dhama is the topmost planet and residence of the Supreme Godhead Sri Sri Radha-Krishna. Below this is Hari-dhama where the spiritual planets of the Vaikunthalokas are situated. Below the Vaikuntha planets is "Mahesh-dhama" (also called Sadasivaloka, or the abode of Lord Siva). This is the realm dividing the spiritual from the material universes. Below Mahesh-dhama is Devi-dhama, the realm of the material universe. It is said that the systems of yoga offer different destinations. Bhakti yoga directs one toward entering Hari-dhama or Goloka-dhama. Jnana yoga directs the aspirant toward entrance to Mahesh dhama, and karma yoga directs one to remain in Devi-dhama, experiencing repeated birth and death in the material worlds.

The Planetary Systems of Devi-Dhama

In the Bhagavad-Gita we find a statement that there are three divisions of material planets in our universe. They are "urdhva-loka" (highest), "madhya-loka" (middle), and "adho-loka" (lower). Above the urdhva-lokas are the coverings of the material universe beyond which lie the eternal realms of existence. Within these three spheres of existence are 14 main planetary systems with different standards of life and duration of existence. The residents of the upper three systems have almost no disease or aging of the body, and they have no sense of fear. As the planetary systems progress downward there is lesser duration of life and standard of living, as well as a greater manifestation of disease and anxiety.

The 14 planetary systems are named as follows, from highest to lowest:

1) Satya-loka

2) Tapa-loka

3) Jana-loka

4) Mahar-loka

5) Svar-loka

6) Bhuvar-loka

7) Bhur-loka

8) Atala-loka

9) Vitala-loka

10) Sutala-loka

11) Talatala-loka

12) Mahatala-loka

13) Rasatala-loka

14) Patala-loka

In one of the Vedic scriptures called the "Hari-vamsa" there is a description as follows: "Above the planetary systems where humans live is the sky. Above the sky is the orbiting sun, which is the entrance point of the heavenly planetary systems. This is the middle of the universe where begins the planets of those elevated by great austerities and penances. The planets above these, up to Satya-loka are the residences of those advanced in spiritual knowledge. All these planets are within the material world and under the control of Devi (Goddess Durga), and therefore called Devi-dhama."

The term "amara" (deathless) is often used to describe the residents of the heavenly planets because their span of life is inconceivable to us, but although they live for millions of years by our calculation, none within the material worlds can live here eternally. In Bhagavad-Gita there is given a description for the life span of those living on Satyaloka. One day is equal to 4,300,000,000 solar years. On other heavenly planets the day is considered to equal six months of our time, and the night also equal to six months on earth. These souls live in their bodies for 10 million of their years.

Time duration such as day, night, months, and years are different in different planetary systems, and there are also different types of human beings, animals, trees, and vegetation. Some of the planets that are visible to us are considered heavenly planets with different timings. Jupiter, Venus, and the Moon are examples of planets where one day is equal to six months on earth. How can that be, one may ask, when we can see these planets orbiting the Sun?

One point of reference that may be difficult for some to understand is crucial to this realization. All planets have different dimensions surrounding them. The dimension of existence visible to our eyes gives us the impression that the other planets in our solar system are mostly devoid of life. In actuality astronomers have found proof of intelligent life on other planets, regardless of the fact that little is yet public knowledge. The purview discernable by our physical eyes, though, cannot enter into the heavenly spheres of these planets where devas, angels, and higher beings exist, nor even that of humans who enjoy an existence far superior to what is obtainable on our planet earth.

Just as on and surrounding earth there are realms of existence inhabited by ethereal beings invisible to our eyes, some highly advanced and others bound by unfortunate circumstances (such as ghosts), all planets have different spheres of existence. We can never gain knowledge of the multi-dimensional reality on earth with our physical eyes, so how could we possibly expect to enter into the higher realities of other planets with them?

There are also different types of oceans on different planets in the material world. "Siddhanta-siromani", an ancient vedic astrological text describes them as being of seven varieties:

1) an ocean of salt water

2) an ocean of milk

3) an ocean of curd

4) an ocean of ghee (clarified butter)

5) an ocean of sugar cane juice

6) an ocean of liquor

7) an ocean of sweet water

Our minds may balk at such a conception of different types of oceans, but why should any of these be more fantastic than the ocean of salt water that we have here on earth?

There are also some eternal planets seemingly situated within this material universe, but they are always inaccessible for human beings. The text "Laghu-Bhagavatamrita" describes these eternal planets as follows: "Above Rudraloka, the planet of Lord Siva, is the planet called Vishnuloka. It is 400,000 miles in circumference, and inaccessible for any mortal living being. Above that Vishnuloka is a golden island called Maha-Vishnuloka in the ocean of salt. Brahma and other demigods sometimes go there to meet Lord Vishnu. Lord Vishnu lies there with Lakshmi (the goddess of fortune). East of here is the "ocean of milk" where within is the island of Svetadvipa, where Lord Vishnu also resides with Goddess Lakshmi. His transcendental island is 200,000 square miles and covered with desire trees for the pleasure of the Supreme Lord." This planet is called "Dhruvaloka" and we see it as the polestar. It is said to be 3,800,000 yojanas above the sun (one yojana is equal to 8 miles). Above Dhruvaloka by 10,000,000 yojanas is Maharloka. Above Maharloka by 20,000,000 yojanas is Janaloka, a further 80,000,000 yojanas lies Tapaloka, and above by 120,000,000 yojanas is Satyaloka. The Vaikuntha planets begin 26,200,000 yojanas beyond Satyaloka.

The scripture "Vishnu Purana" describes that the outer covering of the universe begins 260,000,000 yojanas above the sun. About 70,000 yojanas below the earth begin the seven lower planetary systems of Atala, Vitala, Sutala, Talatala, Mahatala, Rasatala, and Patala. Below these planets 30,000 yojanas is the Garbhodaka Ocean where Sesa Naga lies. This ocean is 249,800,000 yojanas deep. This gives an approximate diameter of the universe as 500,000,000 yojanas or 4,000,000,000 miles. These distances are calculated according to the distances between the planetary "planes" of existence. Actual distances between planets may be more.

The higher planetary systems are the realms of devas, demigods, and angels. Bhuvarloka is the abode of ghostly spirits, and the lower planets are populated by those of demoniac consciousness as well as the snakes known as "Nagas". Development of higher consciousness, which also includes advanced intellectuality, starts with human beings and further increases among the denizens of higher planetary systems. The earth is situated close to the middle of these planetary systems.

Descriptions of the Planetary Systems Satyaloka

This is the abode of Lord Brahma, the progenitor of this material universe. Here there are airplanes controlled by mantra, not by any mechanical means. The residents have mind and intelligence, but no material gross bodies. They feel compassion for those suffering in the lower regions, but do not suffer fear, old age, or death. At the time of final dissolution of the material planets the residents here transform their subtle bodies into spiritual bodies and enter the eternal Vaikuntha planets. Great yogis finally reach this highest planet through the Milky Way, which is the "highway" to this most elevated planet where the duration of life is calculated as 15,480,000,000,000 years.

Tapaloka

This is the abode of the four Kumaras named Sanat, Sanaka, Sanandana, and Sanatana. In this world many great sages also reside due to their advancement through spiritual austerity. The enjoyment available to the residents is inconceivable to us as it is beyond anything of our experience. When there is annihilation of the material universe the residents here also transform their subtle bodies to spiritual and enter the spiritual sky.

Janaloka

This planet, still above the heavenly realms, is another abode of great saints and sages. This planet is populated by mystics who move to higher planets, and eventually transform their subtle bodies to spiritual, when the fire of devastation consumes the material planets. These residents can move between any planets within the material universe as mystic "spacemen" at speeds unthinkable to us.

Maharloka

When fully purified from material desire and contamination through sacrifice, penance, and charity one can reach the heavenly planets, and if advancing further can pass through the higher orbits to reach Maharloka. The greatest of sages, such as Bhrigu Muni, live in this place. It is situated beyond the "Sisumara", which is the pivotal point for the turning of the universe. Advanced yogis reach this planet and live here for 4,300,000,000 solar years. When the fire of devastation almost reaches this planet the residents transport themselves to Satyaloka where they live further before this highest of planets is destroyed. They then transform their subtle bodies to spiritual and enter the spiritual realms.

Dhruvaloka

In every material universe is one Vaikuntha planet with an ocean of milk where Lord Vishnu resides on an island called Svetadvipa. This planet is Dhruvaloka. Living here are completely pure personalities. In our universe this planet is seen as the polestar and is situated above the planets of the Seven Rishis. As it is a spiritual planet, it is eternal and therefore remains when all other planets within the material universes are destroyed. It is said that this planet is the pivot for all material stars' and planets' orbits. All planets travel at high speeds in orbit, including the sun, which travels 16,000 miles per second in its orbit around Dhruvaloka. The planets of the seven sages are stars just below this planet that also orbit Dhruvaloka. They are always concerned with the welfare of the living entities within this material world and send emissaries to bring spiritual knowledge at various times and circumstances.

Sanaiscara (Saturn)

Saturn is considered an inauspicious planet astrologically, as he gives painful lessons to us here on earth. It is situated 1,600,000 miles above Jupiter and passes through one sign of the zodiac every 30 months.

Brihaspati (Jupiter)

Jupiter is considered a most auspicious heavenly planet and is generally considered favorable astrologically, depending on placement at the time of our births here on earth. It is a planet of devas, and situated 1,600,000 miles above Mars.

Angaraka (Mars)

Mars is considered to be a malefic planet, which creates lack of rainfall on earth and almost always is capable of creating unfavorable influences here. It is situated 1,600,000 miles above Mercury.

Buddha (Mercury)

Mercury is said to be the son of the moon and is 1,600,000 miles beyond the planet Venus. As does Venus, he sometimes moves behind the sun, sometimes in front, and sometimes along with it. Generally the influence of Mercury is said to be auspicious astrologically, except when not moving with the sun. At such times this planet causes great storms on earth.

Shukra (Venus)

Venus is considered a most auspicious and favorable planet, and is also of the heavenly planets. Venus is said to bring rainfall, another reason for it being considered auspicious to life on earth.

Chandraloka (Moon)

The Moon is one of the four most important residences of the demigods. Those who worship the demigods through sacrifice aimed at great material enjoyment are promoted to the Moon. Here the celestial, intoxicating beverage called "soma" is available. It is not possible to enter into or even see the actual heavenly dimensions of this planet with our present eyes. The Moon passes through the entire zodiac in approximately one month. He influences the growth of vegetation and therefore considered the life-giver for all living beings on earth.

Surya (Sun)

The Sun is the source of light and heat for our universe. Modern science considers many stars to also be suns, but in the vedic literature they are considered to be planets of varying material elements, but not the center, as is the Sun. Surya, the sun god, is considered an expansion of Narayana (a form of Lord Vishnu). He controls the seasons here on earth. It is situated between Bhuloka and Bhuvarloka, rotating through the time circle of the zodiac. Yogis practicing hatha or ashtanga yoga, or those performing agnihotra sacrifices, worship the sun for their benefit. The demigods residing on the sun planet have bodies made of fire, necessary for life here.

Rahu

Rahu is said to be an invisible planet, which is situated 80,000 miles below the sun. It causes solar and lunar eclipses, as Rahu, along with Ketu, are the north and south nodes of the moon respectively.

Siddhaloka, Caranaloka, & Vidyadharaloka

These planets are 80,000 miles below Rahu. The residents of these planets are born with natural mystic powers, including the ability to fly without mechanical means, even to other planets. They have all the mystic siddhis, and being materially perfect beings can control gravity, time, and space. Their arts, culture, and sciences are far superior to that knowledge possessed by we here in the earthly realm.

Yakshaloka & Rakshashaloka

Beneath these higher planetary systems, in the sky called "antariksha", are the residences of the Yakshas, Rakshashas, Pisachas, ghosts, and other etheral beings. This realm extends as far as the wind blows and clouds float in the sky. Above this there is no air. Bhu-mandala (Middle Earth)

The planetary systems of middle earth (Bhumandala or Bhuloka) are abodes of both standards of living such as we enjoy on our planet, as well as some heavenly abodes where living beings may "stop" on the way to, or from, births in the heavenly planetary systems. There are seven planetary systems, which are divided by seven oceans. The names of the planetary systems are Jambu, Plaksha, Salmali, Kusha, Krauncha, Shaka, and Pushkara. Each system is twice as large as the one preceding it, and each ocean between the systems are made respectively of salt water, sugarcane juice, liquor, ghee, milk, emulsified yogurt, and sweet water. Bhumandala is shaped like a lotus flower and the seven planetary systems are in the whorl of the lotus. The radius of Bhumandala extends as far as the sunshine, and the limits of our vision here to see the stars and moon. As the sunshine reaches earth from a distance of 93,000,000 miles, this is the radius of the plane of Bhumandala.

Lower Planetary Systems

Below the earth are seven other systems called Atala, Vitala, Sutala, Talatala, Mahatala, Rasatala, and Patala. These lower planetary systems are the same size as the earth planet, and begin 560,000 miles below earth. Sunshine does not reach these planets and light comes from jewels on the hoods of serpents. These planets are populated by persons of great power and opulence, yet of demoniac consciousness, who have reached here through austerity aimed at material enjoyment without spiritual development. They do not become old and diseased and fear only the time factor, which ultimately must destroy their abodes. Therefore they are given the name of "bila-svarga", or subterranean heavenly planets.

The residents here enjoy a standard of material comfort more opulent than even the higher planets due to their desires for high standards of sensual enjoyment, wealth, and influence. The residents are known as Daityas, Danavas, and Nagas and are all engaged in illusory material enjoyment with no thought of spiritual liberation. There are incredible feats of architecture in their cities bedecked with valuable jewels in houses, gardens, compounds, etc. All residents drink juices and bathe in herbal elixirs which free them from any anxiety or physical disease, as well as any sign of physical aging. The visual beauty of these artificial heavens surpasses that of the higher planets and this sensual atmosphere completely captures the mind, allowing no thoughts but those directed toward sensual pleasure and happiness. Since time is not divided into days and nights due to no sunshine reaching these planets, they have no fear produced by time. Only at the time of dissolution does anxiety and fear consume them.

Narakaloka, the Hellish Planetary Systems

Beneath the planet Patalaloka, and slightly above the water of the Garbhodaka ocean, are the Naralokas, or the hellish planetary systems. These planets are of different degrees of suffering for those who must endure life there. Here on earth we can see many hellish circumstances of suffering for people, but nothing like what is experienced on these planets. They are said to be a place of rectification for those who commit the most abominable actions while living as humans on the earthly plane. Although life here seems like it goes on for an eternity, in actual fact the duration of one's "karmic sentence" here may be only seconds or moments. There are 28 different hellish planets described in the Vedic literatures.

These descriptions of the material creation, as well as the spiritual planets, may be found in several Vedic literatures to a far greater depth. I have out of necessity greatly abbreviated the information given here.

All of the planetary systems in the material world will in time be annihilated. This annihilation takes place in two ways. Partial annihilation occurs every 4,300,000,000 solar years, or at the end of each day on Satyaloka. This extends from the hellish planets through all lower planetary systems up to the heavenly planets. The highest planets are not annihilated at this time. The entire cosmic manifestation is wound up in the universal form of God every 8,600,000,000 x 30 x 12 x 100 solar years. The spiritual world, which is never annihilated, simply absorbs the material creation. It is described that before the destruction there is no rain for hundreds of years. Everything dries up and dies due to continuous sunshine. The sun becomes 12 times as powerful as was previously. Then there are horrendous rains that absorb everything into water.

The mortal bodies of living entities, including all vegetation, merge into the earth. The earth merges into its subtle sensation of fragrance. Fragrance merges into water, and water merges into its quality of taste. That taste merges into fire, which merges into form. Form merges into touch and touch into ether. Ether finally merges into the sensation of sound. The senses all merge into their origins, the presiding devas and demigods, then they merge into the controlling mind, which merges into ego in the mode of goodness. Sound becomes one with ego in the mode of ignorance, and ego (the first of all the physical elements), merges into the total nature. The total material nature dissolves into the modes (goodness, passion, and ignorance). These modes then merge into the unmanifest form of nature, and that unmanifest form merges into time. Time merges into the Supreme Godhead, present as Maha-Vishnu, the original creator of the cosmic manifestation. The origin of all life merges into God, the unborn Supreme Soul who remains one without a second, and from whom all creation and annihilation takes place. This annihilation of the material world is the exact reverse of the process of creation. Everything ultimately rests within the Supreme Absolute.

Some Hubble Space Telescope History

The Hubble Space Telescope, named after Edwin Hubble, was built by NASA, and launched into space in 1990. At the time, astronomers the world over expected great discoveries to be made. With this magnificent telescope's help, we could see further into space than ever before.

Why were people so thrilled by Hubble?

With a piece of technology like the Hubble Telescope, we could get a much better look into outer space and learn more about the universe. We could find new black holes, and look back billions of years in time to the very beginnings of our universe.

The Hubble Telescope today

Today, this wonderful piece of equipment has more than met our expectations. It brings us awe inspiring images, and aids us in making new discoveries all the time. With the Hubble's help, we now have definitive proof that dark matter, or energy, is simply matter that we can't see with the naked eye.

Did you know it's estimated that only about ten percent of the Universe is visible?

So, why is the Hubble so important? Well, before the Hubble was launched into space, scientists and astronomers could only learn about space by studying starlight, and the only pictures they had were taken here on earth.

A major step forward in the field of Astronomy

With the help of this huge reflective telescope, discoveries are made every day, and we get spectacular images of space that will take your breath away.

A picture is worth a thousand words

The pictures taken by the Hubble are not your average pictures. They are 20 times larger than pictures taken with a digital camera. Even at that size, they are crystal clear and full of color.

Some Hubble history

Construction of the Hubble commenced in 1977 and was finished in 1985. 5 years later, on April 25, 1990 Hubble was launched into space. the first pictures weren't so great. NASA later discovered why. The giant mirror in Hubble was too flat on one edge.

In 1993, a camera was added to Hubble, and this corrected the problem.

In 1997, Hubble was serviced a second time and older instruments were replaced.

In October 1997, NASA extended the telescope's operations through the year 2010. So it seems as if we have much to discover about the world of Astronomy and space, because this wonderful telescope will continue bringing us images for years to come.

Saturn is Visible Without Using a Telescope

Saturn, the sixth planet from the Sun, has the most spectacular set of rings in the solar system. Saturn has been known since prehistoric times. Saturn is visibly flattened (oblate) when viewed through a small telescope; its equatorial and polar diameters vary by almost 10% (120,536 km vs. Saturn also exhibits long-lived ovals (red spot at center of image at right) and other features common on Jupiter. Saturn's rings remained unique in the known solar system until 1977 when very faint rings were discovered around Uranus (and shortly thereafter around Jupiter and Neptune). Saturn is the least dense of the planets; its specific gravity (0. Saturn is visibly flattened (oblate) when viewed through a small telescope; its equatorial and polar diameters vary by almost 10% (120,536 km vs.

Rings

Rings are 270,000 km in diameter, but only a few hundred meters thick. Early observations of Saturn were complicated by the fact that the Earth passes through the plane of Saturn's rings every few years as Saturn moves in its orbit. Saturn's rings are extraordinarily thin: though they're 250,000 km or more in diameter they're less than one kilometer thick. Two prominent rings (A and B) and one faint ring (C) can be seen from the Earth. The origin of the rings of Saturn (and the other jovian planets) is unknown. The current set of rings maybe only a few hundred million years old.

Satellites

The rings and the larger satellites are visible with a small astronomical telescope. There are satellites within the rings which result in the gaps that are present between some rings. Though they may have had rings since their formation, the ring systems are not stable and must be regenerated by ongoing processes, perhaps the breakup of larger satellites. Saturn has at least 35 naturally occurring satellites. All five, like the newly discovered four outer moons of Saturn, are irregular satellites.

Saturn's interior is hot (12000 K at the core) and Saturn radiates more energy into space than it receives from the Sun. Saturn's rings, unlike the rings of the other planets, are very bright (albedo 0. Saturn is the most oblate (flattened) planet in our Solar System. Saturn's outermost ring, the F-ring, is a complex structure made up of several smaller rings along which "knots" are visible. Saturn also exhibits long-lived ovals (red spot at center of image at right) and other features common on Jupiter. Saturn's bright rings are made of ice chunks (and some rocks) that range in size from the size of a fingernail to the size of a car. Saturn is visible without using a telescope, but a low-power telescope is needed to see its rings. Saturn is the only planet in our Solar System that is less dense than water. Saturn's auroral displays are caused by an energetic wind from the Sun that sweeps over the planet, much like Earth's aurora, which is occasionally seen in the nighttime sky.

Backyard Astronomy - Gazing Into The Past

Astronomy continues to be one of the more popular hobbies. One of the major reasons is because you can stargaze just about anywhere. Although country settings away from city lights are best, everyone can see the moon. And even though the closest star (after our sun), Alpha Centauri is over 4 light years away, can be seen easily with the naked eye.

While simple stargazing with the naked eye is great fun, using a telescope can be awe inspiring. The view of the heavens through even a small telescope is something that has to be experienced to be appreciated. Even though modern technology allows us to view the celestial realm with images on tv and through the internet, there is nothing quite like seeing it though a telescope.

Different Telescopes

There are basically three kinds of telescope. The refractor and reflector and catadioptric. The refractor telescope collects and bends light with a convex lense and eyepiece. This bending or refracting concentrates the light rays to a small focal point making things appear larger or brighter. The reflector telescope on the other hand, as its name suggests, reflects light from a convex mirror in the back of the telescope to another mirror in the front and finally to the eyepiece. The convex shape of the mirrors "scoop up" and concentrate the light to a focal point thereby magnifying an object. Caution: Objects in a telescope appear closer than they really are!

The third type, called Catadioptric, combines features from both reflecting and refracting telescopes.

Which one is best? For image quality and portability, my choice is the catadioptric. It's easily transported and has the best features of both the reflector and refractor telescopes. Because of the design, catadioptric telescopes are almost completely free of the coma found in reflectors and the chromatic aberration in refractors. Chromatic aberration is the distortion of color due to a lenses inability to bring various colors in the light into focus. Coma is the distortion of an object at the edge of your field of view.

Convenience is another factor to consider. If you have to transport your telescope as I do you'll appreciate the catadioptric's compact size, light weight and how easy it is to set up and take down.

Travel Through Time

We all know light travels at an unimaginable speed of 186,000 miles per second. Even our sun's light takes about 8 minutes to reach us once it's left the surface. Now think about our closest neighbor, Alpha Centauri. It's over 4 light years away so the light from its' surface began its' journey over 4 years ago. We are actually seeing it as it was more than 4 years in the past. In a very real sense we are looking back in time. Think back to what you were doing 4 years ago. Whatever it was, while you were doing it, light emanated from the surface of Alpha Centauri and came screaming along at 186,000 miles per second on the long journey toward earth, arriving here just a few minutes ago. Alpha Centauri is actually part of a star system. 3 separate stars, Alpha Centauri A and B form a binary while Alpha Centauri C is 13,000 Astronomical Units (AU) away. This is part of the reason it's easily seen with the naked eye, you are actually looking at 3 stars instead of 1.

Closer To Home

One need not look outside our own solar system to find amazing sites in the night sky. The moon may look smooth when seen with the naked eye but train a telescope on it and prepared to be wowed. The level of detail will depend on your telescope but the craters and jagged mountains are clearly visible. The best viewing, in my opinion is when the moon is in a crescent stage as the shadow created by the earth allows for much more detail to be seen. I saw the moon for the first time through a telescope years ago. I watched as it slowly drifted past my field of view and could almost feel its' movement. Of course I knew it moved along its' orbit around the earth but to actually see it moving was an incredible experience.

Saturn, probably the most fun to observe because of the rings, makes for spectacular stargazing. Depending on the time of year, the rings of Saturn are visible and to this observer, quite breathtaking. While I couldn't discern any colors or variations in the rings, they appear quite distinctly from the planet itself, something I'd seen only in books prior to that.

Stand on the shores of any ocean on earth and get a sense of the sheer enormity of it. Then realize that it's not even a drop in a bucket by comparison to the size of the sky it sits beneath. Looking up at the stars at night makes you realize just how massive everything really is. There is no number that can truly measure or even estimate its' size or dimensions. The only thing that can even remotely compare to the wonder of space is the imagination of those who view it.

Radar Astronomy-The Ins and Outs of New Technology

NASA's Jet Propulsion Laboratory, using technology similar in some ways to that used to power microwave ovens, is detecting and imaging asteroids by beaming radar signals toward the objects, then collecting and analyzing the reflected waves. Radar astronomy doesn't require a night sky or a space probe to find and analyze the objects-just the world's largest dish antennas. Radar pulses are beamed toward selected targets and the reflected "echoes" are collected and analyzed to reveal information about surface features, rotation, as well as internal structure and density of the asteroids.

Closer targets provide better signals and therefore more accurate information from which three dimensional models can be imaged, and the rotation of the asteroid can be defined. A good signal can enable a spatial resolution of less than 10 meters. Echoes from more than 190 near-Earth asteroids have been detected, showing great variations in structure and composition, with no two alike. They can be stony, metallic, smooth or coarse in texture, traveling alone or with satellites, and come in an endless variety of shapes and sizes.

Arecibo Observatory in Puerto Rico, with its 100-foot diameter telescope, and the 70 meter Goldstone antenna, located in the Mojave Desert of southern California, are the only two places in the world performing effective radar astronomy. Each complements the other, making an effective asteroid detection partnership. Researchers, using the antennas of Arecibo and Goldstone, were able to observe the near-Earth asteroid 1999 KW4 and determine it to be a double asteroid, or binary, comprised of two rubble clusters orbiting each other. Although the asteroid passes near Earth occasionally, and is classified as a Potentially Hazardous Asteroid, the information provided by the observatories indicated that it will not cross Earth's path for at least 1,000 years.

Radar astronomy has been shown to be vital for locating asteroids and predicting the orbits of the ones that could pose a danger to the Earth, as this form of asteroid detection and analysis has proven to be much more accurate than observations made by optical instruments. Radar astronomy would also provide more accurate information about any approaching comets, including their composition and projected path.

Future technology is planned which will make it possible to discern surface features on asteroids with four times the amount of detail than is possible now. It is also suggested that before any space mission to an asteroid, the necessary pre-flight, scientific analysis will depend upon the information gathered by radar astronomy.