Galaxies

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Rohan Naidu was sitting at home with his girlfriend when he found the galaxy that nearly broke cosmology. As his algorithm dug through early images from the James Webb Space Telescope (JWST) late one night in July, Naidu shot to…

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Gravity can do some pretty astonishing things out there in the universe. When it’s not ensuring the downward trajectory of your spilled coffee directly onto your shirt here on Earth, the invisible force is playing arts and crafts with…

Ask astronomers about dark matter and one of the things they talk about is that this invisible, mysterious “stuff” permeates the universe. In particular, it exists in halos surrounding most galaxies. The mass of the halo exerts a strong…

Wednesday, July 27 Asteroids are numbered in order of their discovery, so it makes sense that those with the lowest numbers must be brightest and easiest to see. This month, though, is your chance to hit one of the high numbers: 387…

LEICESTER (UK): After decades of development and many trials and frustrations along the way, the James Webb Telescope has finally started to deliver what it came for. On July 12, Nasa released the first science observations made by the…

Well, this is the week for distant galaxies, isn’t it? Not only has JWST revealed some of the most distant ones ever seen in infrared, but other observatories are studying them, too. Astronomers at the Cosmic Dawn Center in Copenhagen…

Astronomers shared a trove of images of galaxies created from data from four now-retired missions. Cosmic dust contains the building materials for forming…

Some galaxies, like the Milky Way, have maintained regular star formation for billions of years. Others, like large elliptical galaxies, are “red and dead.” Star formation in those galaxies shut off long ago. Astronomers have long…