Astrophysics

Rather than ripping up our fundamental models of the universe, the unexpectedly big and bright galaxies spied in the early universe by JWST probably have astrophysical explanations

The Laser Interferometer Space Antenna could discover gigantic ripples in spacetime from merging supermassive black holes and more

Thousand of exoplanets have been discovered over the past decades, and understanding how they wobble on their axes could tell us what their seasons might look like and how habitable they may be

The last time North Americans caught a total solar eclipse, the sun was in a lull of activity. This year’s eclipse will be very different

A serendipitously discovered object nearly as massive as the Milky Way appears to be made of primordial gas that has formed almost no stars

Information theory can help us decode signs of biological activity hiding in the atmospheres of distant exoplanets

Astronomy is beautiful and elegant. The language we use to describe its processes is anything but

Middle-aged stars hit cruise control, stifling their magnetic fields and resisting the slowdown that scientists expected

A newly spotted world is just perplexingly dense

A newly released image from the James Webb Space Telescope provides a detailed view of a star’s infancy

For six seconds tonight, the constellation Orion will appear to lose the vibrant red star at its shoulder—and scientists are thrilled

Amaterasu—the most powerful cosmic ray seen in three decades—seems to come from an empty point of the sky. New telescopes may solve the mystery of its origins