A mysterious visitor from another solar system could be an alien spacecraft, according to a leading Harvard astronomer.

Since Kepler's laws of motion dictate that celestial bodies orbit more slowly when farther from the sun, we are now moving at ...

A mysterious cosmic traveler has found its way to the Solar System from the uncharted reaches of interstellar space. The rare ...

On Jan. 4, Earth received its maximum radiation from the sun, which was at its largest in the sky for 2025. The difference isn't huge — the sun today appears to be a mere arcminute (1/60th of a degree ...

By studying faint vibrations within stars, scientists using the Keck Planet Finder have discovered internal features that ...

Astronomers using the European Space Agency’s Cheops mission have caught an exoplanet that seems to be triggering flares of ...

Today brings a shift in energy across the board, stay alert, follow your instincts, and be ready to act on fresh insight or opportunities. Find daily astrological predictions for all sun signs for ...

I/ATLAS, earlier known as A11pI3Z, is only the third interstellar visitor to be discovered passing through our corner of the ...

Astrophysicist Josep Trigo-Rodriguez of the Institute of Space Sciences near Barcelona, Spain, believes it is an interstellar ...

Long theorized but never observed, the first known “planet with a death wish” is described by Ilin and her colleagues in a ...

Stargazers have plenty of night sky events to look forward to in July. After all the stunning celestial displays so far in ...

A gas giant planet in distant space has kicked the cosmic hornet's nest: After the world's relentless taunting, its fiery star is after revenge, and the planet will suffer the consequences, ...