Following speculation that comets could have been alien spacecrafts, more and more experts in the field are convinced that ...

I/ATLAS was first discovered on July 1, 2025, it has garnered much attention, including speculation, hopes and fears that it ...

When an interstellar visitor slices through the solar system, astronomers usually have to make do with a fleeting, side-on ...

With 3I/ATLAS streaking away from our planet, speculation remains as to whether the interstellar comet is alien or not.

In the South China Sea, near the Paracel Islands, the aqua-colored waters of an expansive shallow reef platform suddenly ...

Europa has a vast, saltwater ocean beneath its icy shell, with more than twice the amount of water in all of Earth’s oceans ...

Searches for dark matter particles have come up empty so far, driving theorists to get more creative with their ideas.

An unidentified man from Ireland with confusion and signs of a brain injury actually had an extremely rare condition that has ...

From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.

In 2025, astronomers sharpened their view of the planetary system around Proxima Centauri — the sun's closest stellar ...

The agency will conduct a controlled experiment on a closed course to study the effects of warning devices to help determine ...