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... of 17 to 170 solar system diameters, measured out to Neptune's orbit). The bow shocks indicate that the stars are traveling fast, ...

Article - News Staff - Feb 2 2009 - 2:09pm - 0 attachments

... measure four to five feet across, whereas Uranus and Neptune come in just below two feet across. I think I'm moving to Maine. ...

Blog Post - Becky Jungbauer - Dec 11 2008 - 12:37pm - 0 attachments

... only other planet seen after an accurate prediction was Neptune, discovered more than 160 years ago.  "It's remarkable," says ... the Earth. Credit: NASA, ESA, and Z. Levay (STScI) Neptune, imaged in 1846, was inferred by its effect on the orbit of Uranus ...

Article - News Staff - Dec 9 2008 - 3:17pm - 0 attachments

... lie close or beyond the orbit of the farthest planet, Neptune. The formation processes of these distant planets are likely to be ...

Article - News Staff - Nov 21 2008 - 11:45am - 0 attachments

The deep interior of Neptune, Uranus and Earth may contain some solid ice. Through ... exists as a solid in the deep interior of planets such as Neptune, Uranus and Earth," Schwegler said. Determining the melting curve ... of pressure), similar to those found in the interiors Neptune, Uranus and Earth. Representative snapshots of ...

Article - News Staff - Sep 24 2008 - 1:07am - 3 attachments

... Belt is similarly shaped by the gravitational influence of Neptune. The planet is brighter than expected for an object of three Jupiter ... It is commonly believed that the planets Uranus and Neptune migrated out to their present orbits after forming closer to the Sun ...

Article - News Staff - Nov 13 2008 - 5:22pm - 0 attachments

... Earth that orbits a red dwarf, already known to harbour a Neptune-mass planet. The astronomers have also strong evidence for the presence ... With a mass of 15 Earth-masses, i.e. similar to that of Neptune, it orbits its host star in 5.4 days. At the time, the astronomers had ...

Article - News Staff - Apr 24 2007 - 8:49pm - 0 attachments

... 1989 Full rings discovered around Neptune In the summer of 1989, NASA's Voyager 2 became the first spacecraft to observe the planet Neptune, its final planetary target. Passing about 4,950 kilometers (3,000 miles) above Neptune's north pole, Voyager 2 made its closest approach to any planet since ...

Article - Kimberly Crandell - Aug 22 2008 - 9:59am - 11 attachments

... massive than the Earth but less massive than Uranus and Neptune (about 15 Earth masses.) These super-Earths are around a rather ... third of all solar-like stars have either super-Earth or Neptune-like planets with orbital periods shorter than 50 days." A planet ...

Article - News Staff - Jun 16 2008 - 11:49am - 1 attachment

... galore. Too low-mass a disk, and nothing bigger than Neptune -- an "ice giant" with only a small amount of gas -- will grow. "We ...

Article - News Staff - Aug 7 2008 - 3:59pm - 0 attachments