We may have just witnessed some of the strongest auroras in 500 years
The auroral displays that wowed observers around the world two weekends ago may have been among the strongest such light shows since record-keeping began.
By Paul Sutter published
Special relativity is beyond weird. Among its many statements are that moving clocks run slow and that moving rulers shrink. But how are we supposed to make sense of this?
By Or Graur published
What did our ancestors think when they looked up at the night sky? All cultures ascribed special meaning to the sun and the moon, but what about the pearly band of light and shadow we call the Milky Way?
By Michael Garrett published
The rise of AI might explain why the search for extraterrestrial intelligence (SETI) has yet to detect the signatures of advanced technical civilizations elsewhere in the galaxy.
By Brett Tingley published
Elon Musk isn't convinced that aliens have ever visited Earth, according to remarks the SpaceX CEO and founder made during a conference on Tuesday (May 7).
By Joe Rao published
The International Space Station, the largest and brightest object now orbiting Earth, will provide excellent views for skywatchers across much of the Northern Hemisphere for much of May.
By Jeff Spry published
An examination of the angels of the moons of Iego from "Star Wars: The Phantom Menace" on the iconic film's 25th anniversary.
By Jase Parnell-Brookes last updated
Buying Guide We've rounded up the best mirrorless cameras, including the latest crop sensor and full-frame models from leading brands.