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Originally posted by Desert Dawg
I am curious though, how is it determined a rock or meteorite is of Martian origin?
Originally posted by d4rk3n3rgy
I am from Kerala,India where the "red rain" thing happened.I saw that.But I've never heard of the theory that the rain contained microbes from outer space.
Originally posted by mikesingh
reply to post by ChocoTaco369
Thanks CT! Glad you like the thread. The aim is to add to the quality of ATS. And research adds to one's knowledge too, and that's the only thing you can take back with you! Now am I sounding too philosophical??
Originally posted by ArMaP
Another good post, mikesingh, a star and a flag for you.
But unfortunately (for the advance of our knowledge about life) these are still just theories, lets hope they can have some confirmation of at least some of the cases.
[edit on 26/4/2008 by ArMaP]
This transit-detection method, by measuring the exact amount of light obscured by the planet, can pinpoint the planet's size. When combined with spectroscopic follow-up observations, it can determine the planet's temperature, probe the chemistry of its atmosphere, and perhaps even find signs of life, such as the presence of oxygen in the air.
Originally posted by skyblueff0
....the information we receive from that distant planet is billion of years old, for all we know the planet is could be long gone, or be thriving with intelligent life, but we won't be able to find out to a few billion years later, when the current light and sound waves travel to earth.
Venus is usually written off as a potential haven for life because of its hellishly hot and acidic surface. But conditions in the atmosphere at an altitude of around 50 kilometres are relatively hospitable: the temperature is about 70 °C, with a pressure of about one atmosphere.
Although the clouds are very acidic, this region also has the highest concentration of water droplets in the Venusian atmosphere. Solar radiation and lightning should produce large quantities of carbon monoxide in the planet's atmosphere, but instead it is scarce, as if something is removing it. They also found hydrogen sulphide and sulphur dioxide. These two gases react with each other, and so are never normally found together unless something is producing them.