
The biggest explosions in the universe, ranked
From planet-scorching stellar outbursts to cataclysms so powerful they shiver the very fabric of spacetime, these are some of the biggest blasts our cosmos has to offer

The biggest explosions in the universe, ranked
From planet-scorching stellar outbursts to cataclysms so powerful they shiver the very fabric of spacetime, these are some of the biggest blasts our cosmos has to offer

New JWST images reveal Helix Nebula’s knots with stunning clarity
A fresh look at the Helix Nebula captures new details of the cycle of stellar life and death


When will we see the universe’s first stars?
The James Webb Space Telescope should soon be able to spot the first generation of stars in space

For Stars, It’s Not Easy Being Green
Stars emit lots of green light, but our eyes don’t let us see them that way

‘Little Red Dots’ Spied by JWST May Be Baby Black Holes in Disguise
Puzzling red spots in images from the James Webb Space Telescope are probably young supermassive black holes obscured by dense cocoons of gas

The Year in the Sky: 2026’s Most Noteworthy Celestial Events
Total eclipses, lunar occultations, planetary conjunctions and meteor showers await stargazers this year

This Newly Discovered Asteroid, Almost Half a Mile Wide, Just Set a New Speed Record
A giant asteroid has sent astronomers into a spin, setting a record for how fast it rotates on its axis

Weird, Wobbling Black Hole Jets Can Shape Entire Galaxies
A wobbling jet from a giant, voracious black hole is suppressing star formation in a distant galaxy—and astronomers have never seen anything quite like it before

The First-Ever Private Space Telescope Could Launch before Decade’s End
Bigger than Hubble and launching as soon as 2029, the Lazuli Space Observatory would be the first-ever full-scale private space telescope

Starless ‘Failed Galaxy’ Is First of Its Kind Ever Seen
Scientists have found the best evidence yet for long-predicted “failed galaxies”

Astronomers May Have Unlocked the Reason for Betelgeuse’s Bizarre Dimming
Researchers found evidence that a companion star may be influencing Betelgeuse, explaining why the latter star’s brightness changes over time

The Pleiades Star Cluster Has a Secret Stellar Family Scattered across the Milky Way
The “Seven Sisters” of the Pleiades are part of a much larger complex that can help reveal our galaxy’s deep history