A comet from another star system does not arrive every year. That is part of what made 3I/ATLAS so compelling when it ...

Scientists failed to find radio signals emanating from interstellar comet 3I/ATLAS, further bolstering its status as a ...

When Comet 3I/ATLAS entered our solar system last year—only the third known interstellar object to do so—astronomers took ...

A new Keck Observatory study indicates that giant planets can spin faster than more massive brown dwarfs, revealing important ...

The White House turned a legal term into a science-fiction spectacle. The real story is not the theatrics. It is how language ...

Scientists studying mysterious glass found in northern Africa have discovered new clues that could uncover how it was created ...

Scientists found no alien signals from interstellar comet 3I/ATLAS after a fresh 7-hour radio scan.

Astronomers swept millions of candidates and found no alien signals from K2-18b, setting the first power limit on any ...

At least 112 non-native species have entered Japanese waters since the late 1800s, with some spreading northward apparently ...

The SETI Institute is the latest to confirm what scientists have long suspected: the interstellar 3I/ATLAS comet is not an ...

The rock, Clinton said, “speaks to us across … billions of years and millions of miles. It speaks of the possibility of life.