From Kepler: Dozens of Earths in the habitable zone
At a press conference today the science team at Kepler announced a swath of new discoveries from the space telescope, all of which point to the impending discovery of multiple Earth-like planets capable of harboring life.
- The confirmation of a rocky planet 2.4 times the mass of the Earth in the habitable zone of a star, with an orbit 290 days long. Though the planet, Kepler-22B, is slightly closer to its star than the Earth, the star, a G star like our sun and six hundred light years away, is also slightly dimmer. The scientists estimate that the planet’s average surface temperature would be approximately 72 degrees Fahrenheit!
- The telescope now has more than 2326 planet candidates, with 207 approximately Earth-size, 680 super Earth-size, 1,181 Neptune-size, 203 Jupiter-size, and 55 larger than Jupiter.
- Of these, 48 candidate planets are considered to be in the habitable zone, 10 of which are approximately Earth-sized. Five of these are considered “very robust candidates,” according to Natalie Batalha of the Kepler team. “Many of these planets could harbor life,” added project scientist Bill Borucki.
Because of the significance of this new Kepler data, the SETI Institute has been using the Allen Telescope Array to focus its search to these planets in particular, looking for any evidence of intelligent radio signals.
On Christmas Eve 1968 three Americans became the first humans to visit another world. What they did to celebrate was unexpected and profound, and will be remembered throughout all human history. Genesis: the Story of Apollo 8, Robert Zimmerman's classic history of humanity's first journey to another world, tells that story, and it is now available as both an ebook and an audiobook, both with a foreword by Valerie Anders and a new introduction by Robert Zimmerman.
The ebook is available everywhere for $5.99 (before discount) at amazon, or direct from my ebook publisher, ebookit. If you buy it from ebookit you don't support the big tech companies and the author gets a bigger cut much sooner.
The audiobook is also available at all these vendors, and is also free with a 30-day trial membership to Audible.
"Not simply about one mission, [Genesis] is also the history of America's quest for the moon... Zimmerman has done a masterful job of tying disparate events together into a solid account of one of America's greatest human triumphs."--San Antonio Express-News
If I recall correctly, less than 2 years ago, someone predicted we’d confirm at least one Earth-size planet in the habitable zone within 5 years – obviously, it’s happened a lot faster than that. The way things are going, it may not be long before we identify an Earth-size planet, within the habitable zone, with Earth-like characteristics – an O2-rich atmosphere & liquid water, which would theoretically make it ideal for life. Exciting stuff…
I’d come to give the go-ahead with you here. Which is not something I typically do! I love reading a post that will make people think. Also, thanks for allowing me to comment!