News tagged with extrasolar planets

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Building a new planet

(PhysOrg.com) -- Astronomers over the past decade have made remarkable progress in the study of extrasolar planets; over 500 distant worlds are now confirmed. Meanwhile, as this active research community continues ...

Jan 04, 2011 4.6 / 5 (10) 7 | with audio podcast

Nearing one thousand exoplanets

A quiet milestone in modern astronomy may soon come to pass. As of today, The Extrasolar Planets Encyclopedia lists a current tally of 998 extrasolar planets across 759 planetary systems. And although various ...

Oct 21, 2013 4.6 / 5 (9) 3

Goldilocks moons

The search for extraterrestrial life outside our Solar System is currently focused on extrasolar planets within the ‘habitable zones’ of exoplanetary systems around stars similar to the Sun. Finding ...

Jan 16, 2012 4 / 5 (10) 1

What are hot Jupiters?

When astronomers first discovered other planets, they were completely unlike anything we've ever found in the Solar System. These first planets were known as "hot Jupiters", because they're giant planets ...

Feb 13, 2014 4.8 / 5 (8) 0

Transit Search Finds Super-Neptune

(PhysOrg.com) -- Astronomers at the Harvard-Smithsonian Center for Astrophysics have discovered a planet somewhat larger and more massive than Neptune orbiting a star 120 light-years from Earth. While Neptune ...

Jan 20, 2009 4.1 / 5 (9) 8