"It is possible that a planet once existed in the solar system but was later ejected, causing the unusual orbits we see today ...

The concept of the Big Bang marks the beginning of our observable universe, which began expanding approximately 13.8 billion ...

"It was something I’ve never seen before and I’ve looked at tens of thousands of images of galaxies over my career," he said.

There could be many more satellite galaxies orbiting the Milky Way than previously thought or observed, according to ...

How do we know 3I/ATLAS, also called comet C/2025 N1 (ATLAS), is interstellar? Will it strike Earth? Can we visit it? Here ...

The game-changing Vera C. Rubin Observatory will collect more astronomical data in its first year than all other telescopes ...

New gravitational wave findings from the LIGO-Virgo-KAGRA Collaboration report the discovery of the largest black hole merger ...

An international team of astronomers report the discovery of a long-period radio transient, which is unusually circularly ...

In other cases, another member of the system will go on to form a second white dwarf. If gravitational instabilities bring ...

New Research Reveals Universe's End May Come Sooner Than Previously Predicted, Challenging Long-Held Theories. ... and astronomy has gotten us this far where we can look further for such new ...