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I've heard that the exoplanet has almost the same atmosphere as Earth. So are we going to transport humans to there? What do you think? Thanks!
An exoplanet is any planet outside the solar system so usually a long way off. There have been several hundred such planets detected so far. They are very hard to detect and even harder to resolve because of the presence of their associated star. The fact that we have now been able to verify the existence of solar systems other than our is proof that our system is not unique, though it was generally assumed that uniqueness was very unlikely. I don't think we have much knowledge about the atmosphere of such planets. In fact, because they are so hard to detect, the ones that have been detected tend to be very big like Jupiter. We are not able to verify the exeistence of any exoplanets that could support human life with our current technology so transporting humans there is not a consideration. Also we have not to technology to do so even if such a planet were discovered. They are many light-years away.
So far, due to the sensitivity of the measurements only large Jupiter size planets orbiting fairly close to their sun have been detected and verified.
QuoteSo far, due to the sensitivity of the measurements only large Jupiter size planets orbiting fairly close to their sun have been detected and verified.I think this was true until quite recently... but not any longer. There's at least one known, small, rocky planet out there:http://news.bbc.co.uk/1/hi/sci/tech/7868100.stm
Quote from: graham.d on 02/01/2011 12:01:41Is there a name for the exoplanet then?
Is there a name for the exoplanet then?
What size is this terrestial planet? How far away?How was it determined that this orbiting body was not a gas giant like Jupiter?
Is there a name for the exoplanet then?
QuoteWhat size is this terrestial planet? How far away?How was it determined that this orbiting body was not a gas giant like Jupiter?- it's very near its sun and very hot. I'd imagine its size and mass can be determined and the density would suggest a rocky rather than gas-giant type composition, but I'm guessing. There's a gas giant in orbit about the same star.QuoteIs there a name for the exoplanet then?The one in the BBC article is called Corot-Exo-7b but as graham.d says it's one of many.
Quote from: The Scientist on 02/01/2011 13:20:40Is there a name for the exoplanet then? You refer to THE exoplanet but there are several hundred exoplanets that we know about and probably many trillions we don't. I don't know if any have been named but I'm sure you can find out on Google.
The only thing that can be determined by the stars degree of wobble is the force needed to creat this wobble.
You mean it is possible to conduct peer reviewed research and serious literature analsyis via Google?
QuoteThe only thing that can be determined by the stars degree of wobble is the force needed to creat this wobble.Indeed, but if you bothered to follow the link I posted before making sweeping pronouncements you might have noted that this particular exoplanet was not discovered from the wobble of the star it's orbiting with, but rather from the observed dimming of the light from the star as the planet passes between it and the telescope. Since the planet is described by the scientists as "rocky", they presumably have some basis for this statement. It's not my area of expertise, but presumably at least some information on the size of the planet can be obtained from the extent to which observed light is dimmed. I have not read the primary research, but the level of detail we're talking about here is quite sufficiently explained by a popular science article.
I think this was true until quite recently... but not any longer. There's at least one known, small, rocky planet out there:http://news.bbc.co.uk/1/hi/sci/tech/7868100.stm
given that Mars is really very close to us (on the scale of these things) and we haven't got there yet, the probability of our going to a planet in orbit around even a star which is a relatively near neighbor to our sun before the human race wipes itself out seems to me to be vanishingly small.If we were to set up a space ship to travel to a distant planet, it'd have to be a ship which could support several generations of humans, presumably by being totally efficient in recycling resources, and would in effect be a colony all of its own.. to the extent that the planet it was aiming for would, arguably, be a bit of an irrelevance, except perhaps in terms of needing some source of energy because presumably the (probably nuclear) energy source would be exhausted eventually. There might also be a bit of a problem with the limited gene pool on the ship...