Stars and Galaxies

For the first time since its discovery, scientists have found stars within the Magellanic Stream, a mighty river of hydrogen gas emanating from two small galaxies in the outskirts of the Milky Way.

Astronomers have discovered around 300 new gamma-ray-blasting pulsars, including several "spider pulsars" that devour the companion stars like black widows.

Located at a distance of 2.5 million light-years, the Andromeda Galaxy is readily visible to the unaided eye on dark, clear nights. Here's where you should look this week.

Astronomers have spotted an accretion disk feeding matter to a young star and helping it grow in a galaxy outside the Milky Way for the first time.

The James Webb Space Telescope stared through the gas and dust surrounding an infant star around 1,000 light-years away to see the turbulent outflows it is generating.

The Hubble Space Telescope has observed a double whammy — two independent galaxy clusters grouped together in the same view.

New research strengthens the connection between neutron stars with powerful magnetic fields called magnetars, and mysterious blasts of radiation called fast radio bursts.

Synchronizing two different stellar clocks helped reveal how long before adolescent stars fly the nest and leave their stellar siblings.

Buying Guide The best telescopes on the market for exploring everything from the moon to deep space galaxies and nebulas.

A new photo from the European Southern Observatory’s Very Large Telescope captures the Vela supernova remnant, the result of a stellar explosion that happened 11,000 years ago.

Conditions within dwarf galaxies initially produce more stellar-mass black holes than supernova explosions.

A waxing gibbous moon, Saturn and Jupiter make inviting targets for skywatchers this Thanksgiving.

A new supercomputer simulation reveals why spiral galaxies like our Milky Way are strikingly scarce in our pocket of the universe.

New research suggests massive "vampire" stars exist in triple star systems.

Significant amounts of nickel observed in galaxies only two-to-three billion years after the Big Bang.

The universe is not just expanding – its rate of expansion is accelerating. And that expansion rate is even faster than the leading theory predicts it should be, leaving cosmologists puzzled.

A new calibration technique allowed the ALMA radio telescope to capture its highest-resolution image ever, featuring a star in the final stages of its evolution.

The "Demon Star" of Algol gets eclipsed this week by one of its stellar siblings. Here's what you need to know.