Also how long would it take to get there traveling at the speed of light?
2007-09-10 12:28:06 · 11 answers · asked by Fortis cadere cedere non potest 5 in Science & Mathematics ➔ Astronomy & Space
oops I should have said outside of our solar system. sorry :)
2007-09-10 12:31:36 · update #1
Do you mean outside of our solar system? please clarify this a little better, because they are two completely different answers.
Edit:
Gliese 581 C is the smallest extrasolar planet, or "exoplanet," discovered to date. It is located about 15 times closer to its star than Earth is to the Sun; one year on the planet is equal to 13 Earth days. Because red dwarfs, also known as M dwarfs, are about 50 times dimmer than the Sun and much cooler, their planets can orbit much closer to them while still remaining within their habitable zones, the spherical region around a star within which a planet's temperature can sustain liquid water on its surface.
It is about 20.5ly away. So travelling at light speed (which we cannot do) would take over 20 years to reach.
2007-09-10 12:33:09 · answer #1 · answered by Tony 3 · 3⤊ 0⤋
No planets we have found so far (we have found over 200 exoplanets around over 160 stars) are habitable (as far as we know).
The problem is we can't actually 'see' those planets - we can infer their existence using a variety of observational tools, but we have yet to image one of those planets.
And until we can see them and separate their light from their star's light (to get an accurate spectrum of the planet to analyze chemical composition) we won't know whether they can support human life.
The closest star with a confirmed exoplanet is Epsilon Eridani, at 10.5 light years. However, that planet is 1.5 times the mass of Jupiter, so its not likely habitable by humans.
When distances are given in light years, that also gives you the time it would take to get there at the speed of light.
2007-09-10 13:12:14 · answer #2 · answered by Anonymous · 2⤊ 0⤋
Technically there are no standard liveable planets close to us that we are responsive to. Mars may well be liveable if we've been to reason worldwide warming so the planet might warmth up and kind water and the air might could be wiped clean of inpurities. additionally, lots of the moons surrounding Saturn (Titan, and so forth), they are probably liveable it the air is faraway from inpurities and so forth. outdoors our photograph voltaic device and outdoors aspects of our galaxy even, there are planets that are stuffed with oxygen and water. some planets that are in basic terms water and function intense depths and no land. in the event that they might help existence and had land mass, they might maximum probable be liveable. See NASAs informational internet site, etcetera. try googleing it. yet there are no understand planets. IF there the place, we would have discovered the thank you to get there.
2016-12-31 19:04:00 · answer #3 · answered by Anonymous · 0⤊ 0⤋
nearest planet is venus. It is inhospitable. there is no way life can survive there. Traveling at the speed of light it would take about 2-3 min to get there
2007-09-10 12:31:56 · answer #4 · answered by Anonymous · 2⤊ 0⤋
The two closest planets to Earth are Venus and Mars.
Venus at its closest point is 25.8 Million Miles from Earth.
Mars at its closest point is 48.6 Million Miles from Earth.
Neither one is suitable for life as we understand it on Earth.
The surface temperature on Venus is 867 Degrees F.
The surface temperature on Mars ranges from Minus 195 Degrees F to Plus 77 Degrees F.
The atmosphere on Venus is totally unworkable for life and is mainly carbon dioxide with sulphuric acid droplets raining down all over the place. Mars has a mainly carbon dioxide atmosphere.
2007-09-10 12:52:18 · answer #5 · answered by zahbudar 6 · 1⤊ 0⤋
Well, Europa, a Jupiter moon, has water, oxygen, heat, and resources - underneath a layer of ice about 1 mi. It isn't known to have life, but it may... It isn't outside of the solar system, though.
2007-09-10 13:31:48 · answer #6 · answered by Onet 1 · 0⤊ 1⤋
any planet we could adapt to such as the moon. Mars actually has an atmosphere that we could utilize with a supplemental oxygen supply
2007-09-11 02:11:36 · answer #7 · answered by Anonymous · 0⤊ 0⤋
Uhhh... Venus? And... since it has no, what's that word that we need lots of? Oh, right. Oxygen. Yeah, Mars doesn't have much of that, so no on the habitable bit. And since we can't travel the speed of light, does it matter?
2007-09-10 12:30:45 · answer #8 · answered by Kyle G 3 · 1⤊ 2⤋
I think if we knew that, there would be probes on the way there, for the last 30 years.
2007-09-10 17:43:48 · answer #9 · answered by Anonymous · 0⤊ 0⤋
it is like jupiter so no and and it is around our second closest star.
and there is earth 2, or bizzaro earth it is on the opset side of the sun and so we can not see it. it is very livable but you have to breath in carbon and out air. thay are an oppset race of us.
2007-09-10 12:38:33 · answer #10 · answered by souljourner 5 · 0⤊ 4⤋