The European Space Agency said Wednesday that scientists have discovered what might be only the third known interstellar ...

More than $10 billion in funds are included in Trump’s tax and spending bill for NASA programs previously targeted by the ...

China has conducted two spacewalks from its Tiangong space station in as many months and is advancing on its lunar ...

Why is Mars barren and uninhabitable, while life has always thrived here on our relatively similar planet Earth?

Hidden among the majestic canyons of the Utah desert, about 7 miles from the nearest town, is a small research facility meant ...