Add Yahoo as a preferred source to see more of our stories on Google. What would happen if aliens contacted us? It’s a longstanding question that now has at least a partial answer, after a ...

The early warning system to detect asteroids that pose a threat to Earth, operated by NASA and its collaborators around the world, got to flex its muscles. It successfully detected a small asteroid 6 ...

The Earth is embraced by its oceans and seas. And so are we. We depend on them for more than half of the oxygen we breathe. Ocean currents shape the slow march of climate and the daily changes of our ...

China is preparing to launch its first-ever asteroid deflection test mission, targeting the near-Earth asteroid 2016 WP8. The mission, set for December 2027, will utilize a kinetic impactor to alter ...

Using carefully selected terrestrial rocks, engineers try to figure out how to work with crumbly rocks like the one the rover encountered on its first sampling attempt. Using carefully selected ...

With over 5,000 exoplanets — planets beyond our solar system — discovered to date, there's a growing interest in locating which of these planets might be habitable. It's no easy matter to find a ...