NASA's newest astrophysics space telescope launched in March on a mission to create an all-sky map of the universe. Now ...

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

All eyes are on Comet 3I/Atlas as astronomers worldwide chase the exotic ice ball through our solar system ...

Two studies fill in gaps about the cosmos’s ordinary matter. One maps it all, even the “missing matter.” The other details one of its hiding spots.

Surprisingly, we found that even significantly higher dark energy densities would still be compatible with life, suggesting ...

Could the universe be spinning like a giant top? This idea, proposed by physicist Nikodem Poplawski, opens surprising ...