News tagged with planetary accretion

Hubble detects giant 'cannonballs' shooting from star

Great balls of fire! NASA's Hubble Space Telescope has detected superhot blobs of gas, each twice as massive as the planet Mars, being ejected near a dying star. The plasma balls are zooming so fast through space it would ...

dateOct 06, 2016 in Astronomy
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How stellar death can lead to twin celestial jets

( —Astronomers know that while large stars can end their lives as violently cataclysmic supernovae, smaller stars end up as planetary nebulae – colorful, glowing clouds of dust and gas. In recent decades these ...

dateFeb 12, 2014 in Astronomy
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Modeling Jupiter and Saturn's possible origins

New theoretical modeling by Carnegie's Alan Boss provides clues to how the gas giant planets in our solar system—Jupiter and Saturn—might have formed and evolved. His work was published recently by the Astrophysical Journal.

dateMar 05, 2013 in Astronomy
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When stellar metallicity sparks planet formation

New research predicts the criteria needed for Earth-like planets to form around a star that have one-tenth the metallicity of our Sun. If researchers find small, rocky planets orbiting stars with lower metallicity, it may ...

dateApr 10, 2012 in Astronomy
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