For the first time, scientists have discovered an Earth-size alien planet in the habitable zone of its host star, an "Earth cousin" that just might have liquid water and the right conditions for life.
The newfound planet, called Kepler-186f, was first spotted by NASA's Kepler space telescope and circles a dim red dwarf star about 490 light-years from Earth. While the host star is dimmer than Earth's sun and the planet is slightly bigger than Earth, the positioning of the alien world coupled with its size suggests that Kepler-186f could have water on its surface, scientists say. You can learn more about the amazing alien planet find in a video produced by Space.com(see below).
"One of the things we've been looking for is maybe an Earth twin, which is an Earth-size planet in the habitable zone of a sunlike star," Tom Barclay, Kepler scientist and co-author of the new exoplanet research, told Space.com. "This [Kepler-186f] is an Earth-size planet in the habitable zone of a cooler star. So, while it's not an Earth twin, it is perhaps an Earth cousin. It has similar characteristics, but a different parent."
Potentially habitable planet
Scientists think that Kepler-186f — the outermost of five planets found to be orbiting the star Kepler-186 — orbits at a distance of 32.5 million miles (52.4 million kilometers), theoretically within the habitable zone for a red dwarf.
Earth orbits the sun from an average distance of about 93 million miles (150 million km), but the sun is larger and brighter than the Kepler-186 star, meaning that the sun's habitable zone begins farther out from the star by comparison to Kepler-186.
"This is the first definitive Earth-sized planet found in the habitable zone around another star," Elisa Quintana, of the SETI Institute and NASA's Ames Research Center and the lead author of a new study detailing the findings, said in a statement.
Continue Reading . . .
See Also:
Exoplanets Most Likely to Host Alien Life | VIDEO
1st Photos of Alien Worlds as Seen By New Exoplanet Imager
Exoplanets Update: "...12 could be habitable"
SHARE YOUR UFO EXPERIENCE
 |
No comments :
Post a Comment
Dear Contributor,
Your comments are greatly appreciated, and coveted; however, blatant mis-use of this site's bandwidth will not be tolerated (e.g., SPAM etc).
Additionally, healthy debate is invited; however, ad hominem and or vitriolic attacks will not be published, nor will "anonymous" criticisms. Please keep your arguments "to the issues" and present them with civility and proper decorum. -FW