The speed of light was a mystery for millennia, a fugitive constant that escaped measurement and understanding. Now among the ...

Tianwen, which means "questions to heaven," is the name given to China's program of robotic Solar System exploration. Tianwen ...

Black hole and Big Bang singularities break our best theory of gravity. A trilogy of theorems hints that physicists must go ...

Researchers repurposed an experiment originally intended to detect gravity, which involved a floating magnet in a ...

The robotic Tianwen-2 spacecraft will collect samples from Kamoʻoalewa, which some scientists suspect is a fragment of the moon.

Harvard astronomer Avi Loeb discusses the hypothetical use of highly energetic events as a way to produce "gravitational-wave ...

The SAA, which NASA has likened to a ‘pothole in space', is an unusually weak spot in the Earth's magnetic field that is ...