As the moon becomes the center of the new space race, the United States is looking for new ways to track spacecraft and other ...

Pairs of black holes have been detected in the past through their gravitational effects, but until now, scientists have never ...

Envision a time when hundreds of spacecraft are exploring the solar system and beyond. That's the future that NASA's ESCAPADE ...

In the 10 years since the first detection of gravitational waves, we have detected hundreds of these waves produced by the collisions between very dense objects, either neutron stars or black holes.

In 2023, astronomers observed a black hole collision that defied established theories. Two enormous black holes spun into ...

The nature of gravity — and whether it can be reconciled with quantum mechanics — is one of the biggest mysteries in physics. Most researchers think that at a fundamental level, all phenomena follow ...

New strategies may soon allow scientists to test dark energy theories within our own solar system, linking cosmic-scale physics to local observation. Science advances through a cycle of proposing ...

Anomalous” heat flow, which at first appears to violate the second law of thermodynamics, gives physicists a way to detect ...