At a time when NASA earth scientists are concerned their research may be scuttled by the incoming Trump administration, the space agency’s top science official is preaching pragmatism and unity.

Add Yahoo as a preferred source to see more of our stories on Google. Mars is almost certainly the next place in our solar system where humans will travel. We’re still many years from actually seeing ...

Mars is almost certainly the next place in our solar system where humans will travel. We're still many years from actually seeing mankind roaming the Red Planet, but with a number of high-powered ...