Across the sky, astronomers are stitching together vast samples of galaxies to understand how often supermassive black holes flare, feed, and reshape their surroundings. The headline image of an ...

For decades, scientists have tried to measure how fast the universe is expanding. This expansion rate is known as the Hubble ...

Astronomers have combined 14 widely used catalogues into the Regalade catalogue. The catalogue provides scientists with a ...