Computer simulations suggest NASA’s Habitable Worlds Observatory could detect Earth-like exomoons around gas giant exoplanets through reflected starlight and lunar eclipses.

Forecasts range from as little as 1 inch to as much as 21 inches, creating high uncertainty.

Astronomers have long chased a hard question: how did black holes grow so huge so fast. Researchers at Maynooth University in Ireland say they now have a clearer answer. Their work; led by PhD ...

The nightmare scenario of Atlantic Ocean currents collapsing, with weather running amok and putting Europe in a deep freeze, looks unlikely this century, a new study concludes. It's the scenario ...