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Thu Nov 8, 2012, 07:11 PM

Super-Earth Discovered in Star's Habitable Zone



The family of planets circling a relatively close dwarf star has grown to six, including a potential rocky world at least seven times more massive than Earth that is properly located for liquid water to exist on its surface, a condition believed to be necessary for life.

Scientists added three new planets to three discovered in 2008 orbiting an orange star called HD 40307, which is roughly three-quarters as massive as the sun and located about 42 light-years away in the constellation Pictor.

Of particular interest is the outermost planet, which is believed to fly around its parent star over 200 days, a distance that places it within HD 40307's so-called "habitable zone."

The planet's five siblings are all believed to be too close to the star and therefore too hot for water to exist in a liquid state.

"The planetary system around HD 40307 has an architecture radically different from that of the solar system," lead researchers Mikko Tuomi, with the University of Hertfordshire in the United Kingdom, and Guillem Anglada-Escude, with Germany's University of Goettingen, write in a paper to be published in the journal Astronomy & Astrophysics.

The finding suggests there may be many ways for a planet to end up in a star's habitable zone, the astronomers added.

http://news.discovery.com/space/zooms/habitable-zone-exoplanet-super-earth-121107.html

8 replies, 725 views

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Reply Super-Earth Discovered in Star's Habitable Zone (Original post)
JRLeft Nov 2012 OP
codjh9 Nov 2012 #1
JRLeft Nov 2012 #2
codjh9 Nov 2012 #3
defacto7 Nov 2012 #4
nc4bo Nov 2012 #8
nadinbrzezinski Nov 2012 #5
JRLeft Nov 2012 #6
riverSdawn Nov 2012 #7

Response to JRLeft (Original post)

Thu Nov 8, 2012, 07:12 PM

1. Send the Tea Partiers! It won't take them that many years to pollute the air and water,

clearcut the trees or whatever is similar there, drive 1/2 the native species into extinction, etc.

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Response to codjh9 (Reply #1)

Thu Nov 8, 2012, 07:15 PM

2. Sadly this is true.

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Response to JRLeft (Reply #2)

Thu Nov 8, 2012, 07:17 PM

3. It's already been done in SF fiction numerous times :^)

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Response to codjh9 (Reply #1)

Thu Nov 8, 2012, 07:18 PM

4. No... Let's go there

and keep it pristine and beautiful. We'll start a new civilization that cares for it's environment.

Leave the T-thugs here. They've already screwed this one up. Let them destroy themselves.

(I don't mean it)

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Response to codjh9 (Reply #1)

Thu Nov 8, 2012, 10:05 PM

8. I'm torn. Send them, leave us or send us, leave them. nm

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Response to JRLeft (Original post)

Thu Nov 8, 2012, 07:18 PM

5. Cool

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Response to nadinbrzezinski (Reply #5)

Thu Nov 8, 2012, 07:30 PM

6. That was my first response.

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Response to JRLeft (Original post)

Thu Nov 8, 2012, 10:03 PM

7. wow

Thanks for posting. Very cool.

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