@Ace(View Post) Yes it has happened, but not that close... By close, I mean it isn't close enough to effect us in the near future... a gamma ray burst would just about end all life on one side of the planet, then slowly kill the other side. Space is very big... of topic: I was watching a documentary that said that NASA had picked up alien radio signals... NASA thought about replying, but it came from 400 light years away, and would be forgotten by then.
umm..I way saying that as the sun gets older,it gets hotter and if it gets hot enough, the earth will have to end it's life as we know it...also we need to launch a big rocket filled with lots of CO2 and launch it into mars! If we do that a couple of times, mars will have life. :P
@lukehowells(View Post) *Nuke inside you goes off* *Dog unaffected* Suck!!! @stickman101(View Post) The sun will be very unstable, soon after Mars is habitable (in geological terms), Saturn will be in the habitable zones, Mars will look like Venus.
oh...though the world will end in 5 billion years,humanity will end in 2012.I don't believe in that stuff (sort of) and a asteroid is coming close to earth in 2029!!
@andrewdavidloftus(View Post) Yes, I have seen many documentaries about those comets, and NASA has methods of destroying them, but Its still very risky.
Mars wouldn't have life if you sent a couple of rockets into it. Mars already has plentiful amounts of oxygen... Did you ever wonder why mars is so orange? (What you see on google earth is actually changed in colour to seem red) did you ever wonder why mars had weathered terrain? how mars has frozen bacteria? Its because it was oxygen rich... that oxygen has settled over millions of years to form rust, and that is why the surface is orange, yet the actual rock is the same as on earth, just underground as the surface is rusted.
@The-Con(View Post) Ok, a lot of what you said is incorrect no offense - And Nasa swore to NEVER destroy the meteor - they said that they would only attempt to move it out of the way with (for example) a solar sail... Destroying it is nearly impossible due to the material it is made of...
also - Mars's atmosphere is .13% oxygen - To be called oxygen rich, a planet has to have at least more than 6.8% of O2 But you are correct that there is iron oxide on the surface making it look orange, so good for you! ;)