Astronomy
- Solar Wind Tans Young Asteroids
Unlike human skin which is damaged by prolonged exposure to sunlight over a lifetime, an asteroid's surface is aged in the first instances of its life. Of course, the time scales of the exposure are much different: for an asteroid the damage is...
- When Jupiter Said, "this Solar System Isn?t Big Enough For The Both Of Us."
It?s something like an interplanetary chess game, where Jupiter bumped a giant planet out of our solar system and may have said,"This solar system isn?t big enough for the both of us." Astrophysicists at the University of Toronto have found that a close...
- Comet-2
Comet - 2 ...
- Solar System
Solar System Facts The Solar System formed around 4.6 billion years ago. There are eight planets in the Solar System. The four inner planets are Mercury, Venus, Earth and Mars while the four outer planets are Jupiter, Saturn, Uranus and Neptune.For...
- Astronomy: Our Space Neighbors
We have a special feeling toward the other planets that circle our sun. Maybe it?s all the science fiction stories about visiting the moon, Mars and other planets. But we love to think about those planets that make up what we call ?the solar...
Astronomy
Did life need asteroid bombardment?
A period 3.9 billion years ago when Earth was peppered with impacts by large asteroids may have created an environment in which primitive life could take hold, rather than destroying that life. This is the bold new claim by astrobiologists at the University of Colorado at Boulder, USA.
What we know today as the Late Heavy Bombardment (LHB) hit all the inner planets around 700 million years after the Solar System formed. The Moon and Mercury still bear the scars from this frightful time when fire and rock rained down from the heavens on a regular basis. Nobody is sure what caused the LHB, but the outward migration of the giant planets such as Jupiter and Saturn may have been enough to disturb the orbits of various comets and asteroids, slinging them in our direction.
- Solar Wind Tans Young Asteroids
Unlike human skin which is damaged by prolonged exposure to sunlight over a lifetime, an asteroid's surface is aged in the first instances of its life. Of course, the time scales of the exposure are much different: for an asteroid the damage is...
- When Jupiter Said, "this Solar System Isn?t Big Enough For The Both Of Us."
It?s something like an interplanetary chess game, where Jupiter bumped a giant planet out of our solar system and may have said,"This solar system isn?t big enough for the both of us." Astrophysicists at the University of Toronto have found that a close...
- Comet-2
Comet - 2 ...
- Solar System
Solar System Facts The Solar System formed around 4.6 billion years ago. There are eight planets in the Solar System. The four inner planets are Mercury, Venus, Earth and Mars while the four outer planets are Jupiter, Saturn, Uranus and Neptune.For...
- Astronomy: Our Space Neighbors
We have a special feeling toward the other planets that circle our sun. Maybe it?s all the science fiction stories about visiting the moon, Mars and other planets. But we love to think about those planets that make up what we call ?the solar...