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NASA's Artemis 2 astronauts practice moonwatching | Space photo of the day for Sept. 22, 2025

Before they head to the moon in 2026, the four Artemis 2 astronauts have to practice observing Earth's nearest neighbor.
Nature

The Moon is rusting — thanks to ‘wind’ blown all the way from Earth

Lunar minerals generate the rust mineral hematite when bombarded with high-energy oxygen particles, experiments show.
Space.com on MSN

Could new comet C/2025 R2 (SWAN) become visible to the naked eye in October? Here's what we know

Daniel W.E. Green at the Central Bureau for Astronomical Telegrams, suggests that comet SWAN will hover near magnitude of +6, ...

Rings, spokes and a dusty core: NASA’s James Webb reveals story of Cartwheel Galaxy’s violent past

The Cartwheel lies about 500 million light-years away in Sculptor. Its wagon-wheel shape formed after a violent collision ...