Kepler Data Suggest Earth-size Planets May Be Practically Next Door | Aero-News Network
Aero-News Network
RSS icon RSS feed
podcast icon MP3 podcast
Subscribe Aero-News e-mail Newsletter Subscribe

** Airborne/NBAA2014 10.21.14 ** HD iPad-Friendly -- Airborne/NBAA2014 10.21.14 **
** Airborne/NBAA2014 10.20.14 ** HD iPad-Friendly -- Airborne/NBAA2014 10.20.14 **
** Airborne 10.17.14 ** HD iPad-Friendly -- Airborne 10.17.14 **

Mon, Feb 11, 2013

Kepler Data Suggest Earth-size Planets May Be Practically Next Door

Research Shows Nearest Planet Suitable For Liquid Water May Be Just 13 Light-Years Away

Using publicly available data from NASA’s Kepler space telescope, astronomers at the Harvard-Smithsonian Center for Astrophysics (CfA) estimate that six percent of red dwarf stars in the galaxy have Earth-size planets in the "habitable zone," the range of distances from a star where the surface temperature of an orbiting planet might be suitable for liquid water.

The majority of the sun's closest stellar neighbors are red dwarfs. Researchers now believe that an Earth-size planet with a moderate temperature may be just 13 light-years away. "We don't know if life could exist on a planet orbiting a red dwarf, but the findings pique my curiosity and leave me wondering if the cosmic cradles of life are more diverse than we humans have imagined," said Natalie Batalha, Kepler mission scientist, NASA's Ames Research Center in Moffett Field, CA.
 
The research team analyzed 95 planet candidates in the Kepler catalog orbiting 64 red dwarf stars. Most of these candidates aren't the right size or temperature to be considered Earth-like, as defined by the size relative to Earth and the distance from the host star. However, three candidates are both temperate and smaller than twice the size of Earth.
 
Red dwarf stars are smaller, cooler, and fainter than the sun. An average red dwarf is only one-third as large and one-thousandth as bright as the sun. Consequently, the not too hot or not too cold habitable zone would be much closer to a cooler star than it is to the sun. "This close-in habitable zone around cooler stars makes planets more vulnerable to the effects of stellar flares and gravitational interactions, complicating our understanding of their likely habitability,” said Victoria Meadows, professor at the University of Washington and principal investigator with the NASA Astrobiology Institute. "But, if the planets predicted by this study are indeed found very nearby, then it will make it easier for us to make the challenging observations needed to learn more about them, including whether or not they can or do support life."
 
The three planetary candidates highlighted in this study are Kepler Object of Interest (KOI) 1422.02, which is 90 percent the size of Earth in a 20-day orbit; KOI-2626.01, 1.4 times the size of Earth in a 38-day orbit; and KOI-854.01, 1.7 times the size of Earth in a 56-day orbit. Located between 300 to 600 light-years away, the three candidates orbit stars with temperatures ranging from 3,400 to 3,500 degrees Kelvin. By comparison, the temperature of the sun is nearly 5,800 degrees Kelvin.

(Image provided by NASA shows artist's concept of planet in orbit around a Red Dwarf star)

FMI: www.nasa.gov


Advertisement

More News

Airborne at NBAA--10.20.14: HondaJet, Honeywell Forecast, Gulfstream's G500/G600

Also: Garmin's ADS-B For BizAv, R44s For Jordan, Textron Aviation, Hartzell Props, Clarity Aloft Pro Plus At a news conference early Monday at the 2014 NBAA convention, HondaJet sa>[...]

Airborne 10.17.14: Enstrom Delivers, Flight School Scandal, NBAA2014

Also: Rare O-46 Rebuild, Valor Unveiled, OK's Anti-Fly-In Airport, FAA Screw-Ups, The first Enstrom Model 480B-G has been delivered to Rick Boswell of New Hampshire with the Garmin>[...]

Airborne at NBAA--10.20.14: HondaJet, Honeywell Forecast, Gulfstream's G500/G600

Also: Garmin's ADS-B For BizAv, R44s For Jordan, Textron Aviation, Hartzell Props, Clarity Aloft Pro Plus At a news conference early Monday at the 2014 NBAA convention, HondaJet sa>[...]

Game-Changing NBAA2014 Sponsor Mid-Continent Instruments and Avionics!

Innovation Brings Safe, Certified, Nanophosphate® Lithium Batteries To New Business Aircraft True Blue Power is the first company in the world to achieve FAA TSO and EASA ETSO >[...]

ANN FAQ: Feel The Propwash!

Get Aero-News Delivered To Your E-Mail We know you, like many of our readers, make it a point to check out the latest news and information daily on Aero-News... but did you know th>[...]

blog comments powered by Disqus



Advertisement

Advertisement

Podcasts

Advertisement

© 2007 - 2014 Web Development & Design by Pauli Systems, LC