Astronomers predict it will pass relatively close to four planets (but not Earth) and the Sun, then continue its cosmic journey. A Harvard professor made headlines theorizing our visitor is a ...

New scientific discoveries may have just rewritten ancient history. Researchers have uncovered shocked quartz—a mineral only ...

It could mean two bright comets will be visible in the night sky at the same time, on the peak night of a meteor shower.

Several well-known meteorite discoveries are still a mystery. Avi Loeb’s interpretation of some meteorite debris possibly being of alien origin is controversial, because peer‑reviewed analyses point ...

Recently, in a “wild” new spin on the theory, known as directed panspermia, it’s been suggested that “aliens sent microbes or ...

When most people imagine the vastness of space, they picture a dark void with plenty of observable objects. Planets, stars, and other galaxies often come to mind when picturing what space actually ...

Astronomers have obtained new images of the mysterious interstellar object 3I/ATLAS that reveal a new feature: the fastest ...

In our nearby stellar neighborhood, a burned-out star is snacking on a fragment of a Pluto-like object. With its unique ultraviolet capability, only NASA's Hubble Space Telescope could identify that ...

Astronomers have detected the chemical fingerprint of a frozen, water-rich planetary fragment being devoured by a white dwarf ...

Pfalzner's models show that interstellar objects — bodies ejected from other star systems — could be captured by these planet ...

By capturing the same thing from very different perspectives, a NASA astronaut and an intrepid photographer create a whole ...