Scientists can't fully agree on what GJ504b actually is. It may be a massive planet or a brown dwarf, a mysterious class of ...

The planets are extremely large, with TOI-791 b being about the same size as Jupiter, and TOI-791 c even larger. Yet, they ...

In 1877, an Italian astronomer mapped faint lines on Mars and called them canali, meaning channels or grooves. But the word ...

Strange interstellar comet speculated to be alien spacecraft is older than Solar System - Scientists say comet represents ...

NASA's Perseverance rover has uncovered one of the most intriguing clues yet in humanity's search for life beyond Earth.

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

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

Scientists propose building a lab on the moon to screen Mars and other space samples for alien microbes before they ever ...

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

When a scientific controversy or breakthrough dominates headlines, press officers and journalists often quote a handful of ...

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

Scientists in a recent breakthrough have discovered vast hidden magma systems beneath the surface of Mars, marking an “unexpected discovery” leading the researchers closer to finding ...