What if Jupiter gained just a little bit more mass during its formation period, and then ignited to become a star? How ...

It sounds like science fiction, but imagining a collision between Jupiter and a black hole helps reveal just how delicate our ...

The shape of a planet's orbit is one of its fundamental properties, along with its size and distance from its host star. Earth has a nearly circular orbit, but some planets outside our solar system, ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Theorbits of Jupiter, Saturn, Uranus and Neptune may have been altered ...

The Sun is an incandescent but benevolent dictator. For billions of years, it’s kept our star system well organized through the influence of its powerful gravity. All the planets revolve around it on ...

An international team of astronomers has discovered eight new extrasolar planets, bringing to nearly 80 the number of planets found orbiting nearby stars. The latest discoveries, supported by the ...

Add Yahoo as a preferred source to see more of our stories on Google. Digital art of distant planet - Dottedhippo/Getty Images On August 24, 2006, our solar system lost a planet. It wasn't by ...

Studying the orbits of thousands of exoplanets shows that large planets tend to have elliptical orbits, while smaller planets tend to have more circular orbits. This split coincides with several other ...

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Sheppard joined Carnegie as a prestigeous NASA Hubble Fellow in 2004 and was appointed to a faculty position in 2007. He ...