Old star maps reveal a sky you would hardly recognize today. Between familiar figures like Hercules and Hydra, you’ll find a ...

If you look at any star atlas published before 1930, you will see what appear to be random lines defining the constellations. Before this date, constellation boundaries had not been formalized. Modern ...

A stack of Starlink V2 Minis, which SpaceX says are designed to fully demise during atmospheric reentry like the rest of the satellites in its broadband constellation. Credit: SpaceX The world’s ...

To date, close to 30,000 satellites have been launched into Earth's orbit, leading to mounting concerns over the debris created when they collide. In a new analysis posted to the preprint server arXiv ...

At some point as children, many people learn to identify one or two star patterns: The Big Dipper, Scorpius, Orion’s Belt. As adults, they see those same shapes again, the star patterns seeming ...