In the Same Orbit, but on Different Planets
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By Frank Ahrens, Washington Post Staff Writer  In the radio industry, Sirius Satellite Radio chief executive Mel Karmazin is like Bono or Prince or Charo: One name is sufficient. Say "Mel," and everyone knows who you're talking about.
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GOLDEN, Colorado &mdash; It has to be some sort of record. At no time over the five decades of sending robot craft into the heavens have so many spacecraft been on duty at such a variety of far-flung destinations or en route to their targets.
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Astronomers describe a planet orbiting a star near the end of its life - a vision, perhaps, of Earth's future.
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We are making dangerous discoveries in space. In April, astronomers found, on our cosmic doorstep, a planet dubbed Gliese 581c. Nestling close to a dim red star, it's a rocky world only a little larger than Earth. Like Earth, it could support liquid water.
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When floating through space, and orbiting the Earth, an astronaut witnesses a sunset and sunrise every 45 minutes. Exploring beyond the atmosphere furthers
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Titan and Dione, two of the moons orbiting Saturn, apparently aren&#39;t exactly what researchers had previously believed. Photographs taken during a flyby of the Cassini space probe this week may clarify and
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Today, author Dariush Derakhshani shows you how to create a 3D representation of our solar system and the mechanics of animating orbits. You'll learn about creating simple objects, setting simple keyframes, and stacking your animation to get planets and moons to orbit each other and the sun. By Sybex. 1101
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MAUNA KEA, Hawaii -- The sharpest image ever taken of a dust disk around another star has revealed structures in the disk which are signs of unseen planets.     Dr...
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HoroscopeForecast for today: Saturn and Neptune are both powerful outer planetary influences taunting one another from opposite sides of the solar system. It's like they're superheroes and each has named the other as an evil nemesis. Only neither is evil. Both are just jealous.
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An experiment using two orbiting satellites has proved that as the Earth turns it drags space and time around itself, like a spinning top in treacle.
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Space scientists offer thoughts, both practical and far-fetched, for what to do if thereâs a space rock out there with our planetâs number on it.
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One pole of the sun is cooler than the other. That's the surprising conclusion announced today by scientists who have been analyzing data from the ESA-NASA Ulysses spacecraft.
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Planet-building is dusty work, and now two space telescopes have captured images of cosmic construction materials: disks of dust circling stars about the same size as our sun.
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The universe looked a little more familiar and friendlier on Tuesday. The roll call of planets beyond the solar system swelled significantly with the announcement of a trio of newly discovered worlds much
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Stargazers will get a rare triple planetary treat this weekend with Jupiter, Mercury and Mars appearing to nestle together in the predawn skies. About 45 minutes before dawn on Sunday those three planets will be so close that the average person's thumb can obscure all three from view.
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The leading theory of how planets form is being revised because of new observations from the US Spitzer Space Telescope. The process is not as smooth and quiet as once thought, but rather the result of violent collisions between massive space rocks.
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NASA's infrared eyes are probing the beginnings of both stars and planets.  In two separate observations, the Spitzer Space Telescope has uncovered the warm glow from a possible stellar infant and an icy disk where planets may one-day form.