Space exploration has always been constrained by one fundamental issue: the need for fuel. Traditional rockets require vast ...

Space has a way of making scientists throw out their textbooks. Just when astronomers think they understand how the universe ...

In the relentless quest to make journeys to Mars shorter and safer, Russian scientists have recently turned heads with a bold claim: A plasma-based propulsion system could cut the Earth–Mars transit ...

For decades, the search for alien intelligence has revolved around the question: if someone out there is listening, how could they hear us? A new study combining data from Penn State and NASA’s Jet ...

Final tests of NASA's laser beam communication technology suggests we'll soon have a new way to keep in touch with astronauts and spacecraft venturing into deep space. Final tests of NASA's laser beam ...