Discovery was hidden in the Hubble Space Telescope’s archival data. Astronomers used stream as a tool for mapping dark matter in a low-mass galaxy. Team expects future telescopes will find many more stellar streams, expanding the ability to probe dark matter across the universe.

For the first time, researchers have discovered a globular cluster stellar stream in a galaxy beyond the Milky Way – specifically in an ultra-diffuse galaxy. The discovery opens up new possibilities for studying dark matter, one of the greatest unsolved mysteries in modern astrophysics. The finding was made by researchers from the University of Copenhagen and has just been published in Nature.

Astronomers have discovered a “black hole star,” an extremely bright red spot in the early universe that appears to be a new type of astrophysical object. It resembles an enormous star, but its energy production is closer to what a black hole might generate.

New observations made using the James Webb Space Telescope reveal that IRS 3, a star located at the centre of the Milky Way, is losing vast quantities of mass. As a result, its surrounding envelope is continuously expanding / Publication in “Astronomy & Astrophysics”