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

Planets without stars to orbit raise important questions about how planets evolve and what habitability might look like ...

Every planet moves around the Sun at its own pace, from Mercury’s 88-day year to Neptune’s 165-year orbit. Orbital periods, ...

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, ...

Scientists have identified 27 mysterious new objects hovering at the edge of our Solar System. Astronomers used the combined ...

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 ...

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 ...

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 ...

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 ...

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 ...

An international team led by researchers from the University of São Paulo (USP) in Brazil has developed an innovative method ...

Astronomers have discovered 27 mysterious new bodies in the far reaches of our outer solar system. Scientists combined the ...