COSMOS MAGAZINE
5 space discoveries from March 2025
Hidden supermassive black hole revealed through hot gas
Astronomers have found radio signals from hot gas surrounding a supermassive black hole. The discovery could help reveal hidden black holes across the universe.
Illustration of the gas cloud around the supermassive black hole. Credit: ALMA (ESO/NAOJ/NRAO), K. Tadaki et al.
Saturn now has 274 moons – but what makes a moon is unclear
Saturn gained a whopping 128 new official moons. The sixth planet from the Sun now has a grand total of 274 moons, the most of any planet in the Solar System. The discovery has raised a lot of questions. How do you spot moons, and why hadn’t anybody seen these ones already?
What’s a blazar? This type of galaxy is more diverse than expected
A galaxy sitting in the background of the Lizard constellation is emitting a narrow jet of ionised matter near the speed of light. But the radiation spectrum of the object has astronomers scratching their heads.
Credit: NASA/JPL-Caltech.
Dark energy survey opens access to largest 3D map of universe
A team using the Dark Energy Spectroscopic Instrument (DESI) and a supercomputer has created the largest 3D map of the universe to study dark energy. The map is now publicly available.
Credit: Claire Lamman/DESI
Physics on the cusp of a major discovery about dark energy and the universe's fundamental nature
Two major dark energy projects, DES and DESI, have released datasets that challenge current cosmological theories, sparking excitement about a potential major discovery.
Credit: Credit: KPNONOIRLabNSFAURAB. Tafreshi.