In the Same Orbit, but on Different Planets
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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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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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SAN ANTONIO - Sometimes, the planets align perfectly and, presto, you can rebuild in one fell swoop without ever hitting rock bottom.
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PARIS -- If you have planetary vision, want to be on the cutting edge and don't get bored easily, the European Space Agency may be looking for you.
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If you have planetary vision, want to be on the cutting edge and don't get bored easily, the European Space Agency may be looking for you.
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Washington - A new class of planets has been found orbiting stars besides our sun, in a possible giant leap forward in the search for Earth-like planets that might harbour life.
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It's the year 2020, and space has never been so busy. Picture this:In Earth orbit, a robotic maintenance ship skitters from one weather satellite to another, upgrading powerful optics that help meteorologists track dangerous storms.
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As winter begins, the early morning sky is loaded with planets. Some are unmistakably bright, but a few will require some sleuthing.
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Astronomers announce recent discoveries of two Earth-like planets.
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Itâs that time of year on the distant planet â when its ring system appears edge-on to observers on Earth.
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By SETH BORENSTEIN  CAPE CANAVERAL, Fla. - Stargazers will get a rare triple planetary treat this weekend with Jupiter, Mercury and Mars appearing to nestle together in the predawn skies.
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A nearby star thought to harbor comets and asteroids now appears to be home to planets, too. The presumed worlds are smaller than Jupiter and could be as tiny as Pluto, new observations suggest.
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Planet hunters have found two worlds roughly the mass of Neptune, each orbiting a star within 30 light-years of our solar system. The planets are likely gaseous or mixtures of ice and rock, but they might be barren rock worlds like Mercury.
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The Messenger spacecraft got a quick glance at the solar systemâs innermost planet, which it eventually will orbit.
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With the help of a modified backyard telescope, astronomers have discovered a giant planet orbiting another star. It is the first extrasolar world found with such modest equipment.
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People have long gazed at the sky and wondered if there were other worlds&#x2014;Earths&#x2014;in orbit around the distant stars.  Since the 1992 announcement of pulsar planets by Alex Wolszczan, more than 130 giant (Jupiter and Saturn size) planets in orbit about nearby stars have been discovered using ground-based telescopes. In 2007, NASA's Kepler Mission will begin the space-based search for extrasolar planets. Over its planned observing lifetime, Kepler is likely to discover many hundreds of extrasolar planets both large and small. ...