Mysterious 3200 Phaethon is the Geminids’ parent object

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Mysterious 3200 Phaethon is the Geminids’ parent object

3200 Phaethon is the weird comet-like asteroid that spawns the Geminid meteor shower. New research reveals more answers ... and questions.

Deborah Byrd

December 12, 2025

Long-lasting gamma-ray burst is a unique puzzle

We now have more insight on the longest gamma-ray burst yet. The burst lasted at least 7 hours, nearly double that of the previous record.

EarthSky Voices

December 11, 2025

There might be an ocean on exoplanet TOI-270 d

Is there an ocean on exoplanet TOI-270 d? A new study said this sub-Neptune exoplanet might be a water world with either a global or nightside ocean.

Paul Scott Anderson

December 11, 2025

Did a lost moon of Mars create tides in an ancient lake?

Thin, repeating sedimentary layers examined by the Curiosity rover suggest that a big, lost moon of Mars created tides in the ancient lake of Gale crater.

Paul Scott Anderson

December 10, 2025

New fairy lantern plant discovered at popular Malaysian park

Scientists have discovered an exquisite new species of fairy lantern - called Thismia selangorensis - at a park near Kuala Lumpur, Malaysia.

Shireen Gonzaga

December 10, 2025

Schedar shines brightly at the Queen’s heart

Schedar is the brightest star in the distinctive W-shaped northern constellation Cassiopeia and is visible most of the year from northern latitudes.

Editors of EarthSky

December 10, 2025

Lightning on Mars? Electric sparks in dust devils confirmed

NASA's Perseverance rover has detected lightning on Mars 55 times. It heard the small electrical discharges with its microphone in dust storms and dust devils.

Paul Scott Anderson

December 9, 2025