Galaxy

In 2018 astronomers claimed to have found a galaxy that didn’t have any dark matter. The controversial study sparked a debate and raised new questions about cosmology. Now, the scientists say they've uncovered further evidence of the odd deficiency.

Planets rotate, stars rotate, galaxies and galaxy clusters all rotate. Astronomers have now discovered evidence that larger scale structures of the universe also rotate – mind-bogglingly gigantic filaments that pipe galaxies around the cosmos.

Japanese astronomers have discovered the echoes of a “dying” supermassive black hole. While the object is quiet now, the team spotted the signatures of two huge radio jets that indicate it only recently fell silent after a bright, active phase.

A new instrument has made a short jaunt to space, as part of a mission to measure the total light ever emitted in the universe’s history. CIBER-2 will search for stray stars between galaxies by monitoring the cosmic background glow of infrared light.

The Milky Way is thought to host a supermassive black hole in its center – but perhaps its dark heart is made of different stuff. A new study proposes that it could instead be a core of dark matter made up of hypothetical particles called “darkinos.”

The majesty of the Milky Way shines away from the city. Travel blog Capture the Atlas has unveiled the latest edition of its annual Milky Way Photographer of the Year collection, showcasing stunning shots of our incredibly photogenic home galaxy.

The dual disk structure of our home galaxy may not be as unique as once thought, according to the results of a new study that probed the cross section of a spiral galaxy orbiting the Milky Way, some 320 million light years from Earth.

Astronomers have detected the highest-energy light ever seen. Hundreds of gamma rays were detected with ultra-high energies, with the most powerful signals crossing the Peta-electronvolt threshold – much higher than thought possible in our galaxy.

Astronomers are another step closer to solving the intriguing cosmic mystery of fast radio bursts. Five signals have been traced to their points of origin within the spiral arms of galaxies, narrowing down the list of suspects behind them.

Antimatter is thought to have been mostly banished from our universe. But could it still be lurking out there? Astronomers have now identified signals from possible antimatter stars, and calculated how many of them might be hiding in our own galaxy.

A team has made some intriguing discoveries in the outer regions of the Milky Way. Astronomers mapped the fringes of the sparse halo that envelops our home galaxy, and found the wake of a dwarf galaxy on an eventual collision course with the Milky Way.

Supermassive black holes create turbulent environments at the centers of galaxies, which should disrupt star formation. But astronomers have peered closer at the heart of the Milky Way and found several “stellar eggs” – and they seem to be hatching.