Astronomy
A rare star in a tiny galaxy preserves a record of the early universe
Found in an ultrafaint dwarf galaxy, the ancient star’s unusual chemistry indicates it formed from gas enriched by a single early supernova.
Astronomy
More Stories in Astronomy
- Astronomy
This inside-out planetary system has astronomers scratching their heads
A rocky exoplanet in the LHS 1903 system defies planet formation models, hinting that gravitational upheaval reshaped the red dwarf’s four worlds.
- Physics
A massive clump of dark matter may lurk in the Milky Way
Pulsating remnants of stars hint at a clump of invisible matter thought to be about 10 million times the sun’s mass.
- Astronomy
A double cosmic explosion could be the first known ‘superkilonova’
The blast may have been a kilonova — a type of neutron star merger — in the wake of a more traditional supernova.
- Space
Betelgeuse’s buddy leaves a wake in the giant star’s atmosphere
The wake left by Betelgeuse’s companion could solve a decades-old mystery of its strange brightness cycles.
- Astronomy
Galaxies with ‘hoop skirts’ are more common than we thought
The discovery of thousands more galaxies with stars ringing their main disks could help astronomers study galactic evolution more generally.
- Earth
Some of 2025’s scientific discoveries broke records
Longest lightning, the first AI-generated genomes and biggest black hole smashup were among this year’s top science superlatives.
- Astronomy
Against the odds, a burbling lava planet retains an atmosphere
The James Webb Space Telescope detected an atmosphere on a lava-covered exoplanet, evidence that small planets close to stars can have atmospheres.
- Astronomy
New Hubble images may solve the case of a disappearing exoplanet
A massive collision between two asteroid-sized bodies around a nearby star offers a rare look at the violent process of planetary construction.
- Astronomy
A new hunt for an Earth analog begins
The Terra Hunting Experiment will track the wobbles of dozens of stars nightly for years in the most focused hunt yet for an Earth twin.
