Add Yahoo as a preferred source to see more of our stories on Google. This relatively long transit time is a result of the use of traditional chemical rocket fuel. An alternative technology to the ...

Here’s how a nuclear bomb actually works. The B61 and the B83 nuclear bombs currently in the United States’ arsenal are thermonuclear, or hydrogen bombs, and quite different than the fission weapons ...

NASA plans to send crewed missions to Mars over the next decade – but the 140 million-mile (225 million-kilometer) journey to the red planet could take several months to years round trip. This ...

This relatively long transit time is a result of the use of traditional chemical rocket fuel. An alternative technology to the chemically propelled rockets the agency develops now is called nuclear ...

The ore was recovered in the early 1970s and completely stumped scientists, until they realized it was evidence of something ...

NASA plans to send crewed missions to Mars over the next decade — but the 140 million-mile (225 million-kilometer) journey to the red planet could take several months to years round trip. This ...