On February 20, 2025, the first stage of a SpaceX Falcon 9 rocket streaked across Europe, and scientists in Germany tracked its lithium pollution plume via LiDAR.

The next asteroid won’t come with a warning siren. What happens after it’s discovered could determine everything.

Some of the universe's most extreme explosions leave behind almost no trace. The original explosion is unseen, but our observations can capture the long-lived echo it leaves behind as the shock front ...

Astronomers have witnessed one of our universe's biggest stars transforming into a rare stellar body, and the dramatic metamorphosis may be the prequel to a powerful supernova explosion that sees this ...

We have known for several decades that the universe is expanding. Scientists use multiple techniques to measure the present-day expansion rate of the universe, known as the Hubble constant. These ...