India’s Sun-watching spacecraft is about to face the moment it was built for. In 2026, the solar cycle will crest, the Sun ...

The last full Moon of 2025 is going to rise with all the panache conferred by a simultaneous perigee. On the night of ...

Learn how Albert Einstein’s theory reveals that time on Mars runs faster than on Earth — and why that tiny shift matters for ...

"A three-body problem is extremely complicated. Now we're dealing with four: the sun, Earth, the moon and Mars. The heavy ...

Uncover Earth’s true cosmic motion—from spinning on its axis to orbiting the Sun and racing through the galaxy. A simple, ...

A radio signal has been detected, pointing to the possible existence of a magnetic field on YZ Ceti b, an exoplanet 12 ...

A pattern in the movements of a brown dwarf that orbits a Sun-like star is likely to be caused by a moon. If confirmed, this would be the first exomoon, that is a moon orbiting a planet that in turn ...

Mars orbiters have given astronomers an unexpected new vantage point on 3I/ATLAS, sharply tightening estimates of the ...

Rising before sunset on Thursday (December 4), the highest full Moon of the year will tower above built-up towns and cities.

Asteroid 433 Eros is swinging back into Earth’s neighborhood this weekend, bright enough for backyard telescopes and even ...

December's full moon 2025 will be the cold supermoon, set to rise amid the longest nights of the year and start of spectacular Geminids meteor shower.

The last full moon of 2025 will be a supermoon, bigger and brighter than normal full moons - and it’s known as the Cold Moon.