Nine billion light years away there two monster black holes, each many millions of times more massive than our Sun, orbiting round each other. We can see this with radio telescopes because one of the ...

Send astronauts nice pixel art, or try something a little harder The next round of the European Space Agency's Astro Pi ...

Billionaire Kam Ghaffarian's startup wants to build a space station to replace the ISS. But missteps, dire financials and ...

They'll join nine people aboard the orbiting lab: NASA astronauts Michael Barratt, Tracy Caldwell-Dyson, Matthew Dominick, Jeanette Epps, Barry Wilmore and Suni Williams, and cosmonauts Nikolai ...

On Wednesday, at least 20 people were killed and 450 injured in Lebanon after walkie-talkies explode in second wave of attack ...

They are inherently more robust than atomic ones, because the nucleus and its energy transitions are more impervious to external perturbations than orbiting atomic electrons are. The transitions ...

Remakes get a bad rap, and frankly it’s sometimes deserved. At their worst, remakes can be pointless exercises in flattening ...

Physics is the search for and application of rules that can help us understand and predict the world around us. Central to physics are ideas such as energy, mass, particles and waves. Physics ...

Each dot represents one of 9,000 satellites orbiting the Earth. They enable modern necessities such as cell phone signals, GPS and high-speed internet. About 25,000 are pieces of obsolete ...

A billionaire spacewalker is back on Earth. SpaceX's capsule carrying tech entrepreneur Jared Isaacman and his crew splashed ...

Two NASA astronauts stuck in space say it was hard to see their Boeing capsule leave without them. Their comments from the ...

On Sept. 19, 1996, the Space Shuttle Atlantis rendezvoused with Russia's Mir space station to deliver supplies and equipment.