(PhysOrg.com) -- The patterns of missing asteroids are like the footprints of wandering giant planets preserved in the asteroid belt.
Space Exploration
Feb 25, 2009
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4
Rocks on Mars are on the move, rolling into the wind and forming organized patterns, according to new research.
Space Exploration
Jan 8, 2009
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A new model that accounts for the interplay of forces acting on newborn planets can explain two puzzling observations that have cropped up repeatedly among the more than 3,800 planetary systems cataloged to date.
Astronomy
Nov 7, 2022
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112
It is known that gas giants around other stars are often located very near their sun. According to accepted theory, these gas planets were formed far away and subsequently migrated to an orbit closer to the star. Now, researchers ...
Astronomy
Mar 25, 2019
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Astronomers have found that the extrasolar planet HAT-P-7b has a retrograde or highly tilted orbit. Studying such planets is important in understanding the diversity of planetary systems and assessing current models of how ...
Astronomy
Nov 18, 2009
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0
Giant planets like Saturn don't just tilt over all by themselves; something has to knock them over, or tug on them gravitationally, to push them off axis. Scientists expect that when new planets are born, they form with almost ...
Planetary Sciences
Oct 18, 2021
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28
Early planetary migration in the solar system has been long established, and there are myriad theories that have been put forward to explain where the planets were coming from. Theories such as the Grand Tack Hypothesis an ...
Astronomy
Jan 28, 2021
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