Using data collected by NASA's Parker Solar Probe during its closest approach to the sun, a University of Arizona-led ...

"Stars like the sun don’t just stop shining for no reason." ...

Astronomers suspect that a massive metallic cloud swirling in a nearby star system could be hiding a giant planet or dwarf ...

Interstellar object 3I/ATLAS is expected to reach its perihelion, or the closest point to the Sun in its highly eccentric path through our solar system, on October 29. Earlier this week, it reached ...

Astronomers are preparing for a rare cosmic event on January 22, when interstellar object 3I/ATLAS will align closely with ...

A mysterious cigar-shaped object spotted tumbling through our solar system last year may have been an alien spacecraft sent to investigate Earth, astronomers from Harvard University have suggested.

Astronomy is the study of stars, planets and the vast space beyond Earth. Every so often, scientists spot an event so unusual that it challenges what we think we know about the universe. Among ...

Sweeping winds of vaporized metals have been found in a massive cloud that dimmed the light of a star for nearly nine months.

A mysterious object found deep in the cosmos could soon have astronomers rethinking what they know about dark matter. That's according to a team of researchers who turned to a global network of ...

The rare 3I/ATLAS alignment on Jan. 22 coincides with the 'opposition surge' phenomenon. Learn the mystery of this 13-billion-year-old visitor.