The Universe

Claiming an exoplanet to be “Earth-like” is a trend that needs to bite the dust

Betelgeuse, the sky’s most famous red supergiant, is well studied but poorly understood

Folding a piece of paper makes it thicker. How many folds would it take to reach the moon—and beyond?

Lakes of liquid methane on Titan, Saturn’s largest moon, could offer exhilarating—and terrifying—opportunities for otherworldly surfing

Using the new Vera C. Rubin Observatory, astronomers are beginning the largest and deepest survey of the sky. What will they see?

Duration, location, aviation: What makes the best possible view of a total solar eclipse?

Other planets have moons, too. Do they get eclipses like we do?

The moon is Earth’s constant companion. But will that always be the case?

Sometimes we mistake one kind of object with another to disastrous effect

The James Webb Space Telescope has found nearby brown dwarfs masquerading as far-distant galaxies. The discovery reinforces how, in astronomy, what you see isn’t always what you get

Meteor camera networks can reveal the hidden history of the solar system, and you can assist from your own backyard

Planets might exist in the least likely place you’d imagine—around the outskirts of supermassive black holes