An alien comet, a Martian volcano, a man’s fall from the sun and a groundbreaking telescope’s first images: Here are the most jaw-dropping space photos of 2025.

If Everest ever lost its crown, the surprise would be cultural, not geological: millimeters, models, and memory would decide.

What can a faint smudge in the pre-dawn sky tell humanity about worlds beyond the Sun? For astronomers in Hawai‘i this week, ...

Astronomers using W. M. Keck Observatory and Subaru Telescope on the Big Island’s Mauna Kea discovered a massive planet and a ...

1959 Kīlauea Iki eruption: It happened in the crater just north of the volcano’s caldera, lasting only about a month with 17 ...

The left map shows the tephra fall associated with Kilauea’s episodic summit eruption, from December 2024 to December 2025.