Like cosmic sleuths with a time machine, astronomers conducted a thorough re-analysis of old data collected by NASA's Hubble Space Telescope in 1998, and found visual evidence for two alien planets ...

A statistical analysis of data collected by NASA's Kepler space telescope has confirmed the discovery of 715 newly-found planets orbiting 305 stars, pushing to total number of known planets beyond ...

The left image shows the star HR 8799 as seen by Hubble’s Near Infrared Camera and Multi-Object Spectrometer (NICMOS) in 1998. The center image shows recent processing of the NICMOS data with newer, ...

Freelance writer Amanda C. Kooser covers gadgets and tech news with a twist for CNET. When not wallowing in weird gear and iPad apps for cats, she can be found tinkering with her 1956 DeSoto. Our ...

Scientists scouring old Kepler Space Telescope data have tracked down 18 more relatively small exoplanets imaged by the famed planet-hunting observatory. While most of the planets orbit close to their ...

A group of scientists has discovered what they believe to be rogue planets hidden in data captured between 2006 and 2014. The new planets are what astronomers refer to as "free-floating planets" — a ...

NASA's Kepler Mission has released 43 days of science data on more than 156,000 stars. These stars are being monitored for subtle brightness changes as part of an ongoing search for Earth-like planets ...

In the past decades, the number of known exoplanets—planets in other solar systems—has skyrocketed. But we’re still in the dark about a number of details, including how massive they are and what ...

We are about to find out just how generous nature really is. On Tuesday, astronomers operating NASA’s Kepler spacecraft will release a list of about 350 stars newly suspected of harboring planets, ...

AUSTIN, Texas — When a team of researchers sifted through old data from the Hubble Space Telescope and discovered two hidden alien planets that had gone unnoticed for 13 years, they inadvertently ...