Using the Keck Observatory, astronomers measured the spins of dozens of giant planets and brown dwarfs orbiting distant stars ...

A new study analyzed how NASA's Habitable Worlds Observatory might be able to confidently spot biosignatures in the ...

The United States government's recent release of hundreds of previously classified Unidentified Anomalous Phenomena (UAPs) ...

Even at this early stage in our spacefaring age, humanity has already begun sending probes that will eventually reach other ...

James Webb has revealed that the sunrise and sunset sides of WASP-121 b have surprisingly different atmospheres.

A NASA‑linked study argues that alien probes could already be in our Solar System, but our surveys are still too crude to ...

Scientists say extraterrestrial life may exist elsewhere in the universe, but vast distances, enormous energy requirements ...

American Religious Belief in Extraterrestrial Life (Princeton Univ., Sept.) argues that several American religious traditions ...

Steven Spielberg's claims of alien visits to Earth spark debate among scientists, who stress the lack of credible evidence ...

JWST has revealed dramatic differences between the dawn and dusk regions of the scorching exoplanet WASP-121 b. Fierce winds appear to carry heat from the planet’s permanent dayside, making the ...

For generations, artists and science-fiction writers have imagined alien landscapes beneath twin sunsets. The image became ...