Hidden away in the darkest corners of Earth’s atmosphere, a faint green airglow quietly paints the night sky, far from the ...

May skies are brimming with action: shooting stars from Halley’s Comet, brilliant planets at dawn and dusk, and a once-in-a-lifetime nova that could light up the night sky any day now. Eta Aquarids & ...

Aussie skywatchers have an opportunity this week to catch one of the best meteor showers of the Southern Hemisphere.

Auroras at Earth’s poles are caused by charged solar particles colliding with the atmosphere—but these glowing wonders aren’t ...

Stargazers can see clusters of shooting stars and planets lighting up the California night sky in May. Stunning streams of comet dust will dash across the sky when the Eta Aquarid meteor shower ...