For only the third time in history, astronomers have detected a new interstellar visitor — an object from another star — blitzing into our solar system.

President Donald Trump's NASA nominee Jared Isaacman to be NASA's top boss is seen during a U.S. Senate Committee on Commerce, Science and Transportation confirmation hearing on Wednesday, April ...

An astrophotographer has captured an extremely rare and "difficult" photo of a solar flare exploding from the sun at the exact moment the International Space Station passed directly in front of our ...