Science
How We Measure the Distance to a Star We Will Never Visit 1
Nobody has ever travelled to another star, yet we know how far away thousands of them are. The method starts with a trick you can do with your thumb
Stories from the universe
Space, astronomy, and the science of looking up — big ideas made clear, without the jargon.
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ExplorationWhat It Actually Takes to Land on Mars?
Roughly half of all Mars landing attempts have failed. The reason is a seven-minute problem that no amount of ground control can help with.
Celestial EventsThe Perseids, Explained
The year's most reliable meteor shower peaks in mid-August. What you're actually watching, and how to see the most of it without any equipment.
Deep SpaceWhy the James Webb Telescope Keeps Finding Galaxies That Shouldn't Exist Yet
Webb keeps spotting galaxies that look too big, too bright and too old for their age. Here's what that actually means — and why it isn't a crisis.