New analysis of data from the Webb space telescope shows that Comet 3I/ATLAS has methane. This shows its origin is different from comets in our solar system.
Airglow is a light that occurs high in Earth's atmosphere. It's usually too dim to see with the eye, but photographers can capture glorious photographs of it.
The Venus-Jupiter conjunction for 2026 is here! Enjoy these stunning photos from around the world as the sky’s brightest planets have been drawing closer.