Earth's auroras look a bit different from above. NASA astronaut Don Pettit captured two amazing videos of our planet's ...

Researchers had been studying the green alga Chlamydomonas reinhardtii for decades without seeing evidence of an active virus ...

Currently only visible from the Northern Hemisphere, C/2025 F2 (SWAN) looks like a small green sphere. Its vivid green glow is caused by diatomic carbon molecules, which emit a green light under the ...

Many deserts face worsening droughts, but India's Thar Desert has become 38% greener in the past 20 years due to increased ...