Scientists have been searching for radio signals from hypothetical alien civilizations using radio telescopes for decades.

Every so often, the universe puts on a show that reminds us how rare and unpredictable space can be. Planets […] ...

The interstellar comet 3I/ATLAS is barreling toward its closest point to the sun as perihelion looms on Oct. 29. How different will it look when it reappears on the other side?

Astronomers found an ancient planetary system being consumed by white dwarf LSPM J0207+3331, hosting the oldest, most ...

Astronomers recently peered deep into space and found that an old, faint white dwarf named LSPM J0207+3331, located about 145 ...

Astronomers using data from the W. M. Keck Observatory on Maunakea in Hawaiʻi Island have identified a rare, ancient ...

Over the past seven decades, thousands of sophisticated spacecraft have been launched on ambitious missions to look down on ...

As mankind was planning the first moon landing in the 1960s, an asteroid approached Earth—and still hasn’t left.

Astronomers in China have detected rare radio emissions from the comet 12P/Pons-Brooks, revealing new clues about the inner ...

Just in time for Hallowe'en in 2024, Hubble and JWST captured an image of two interacting spiral galaxies — IC 2163 and NGC ...

In approximately 5 billion years, the sun will deplete its hydrogen fuel and collapse under its own gravity, becoming a white ...