Scientists aimed ALMA at the comet in March 2024 and saw carbon monoxide — a gas that usually doesn’t show up in observations that far away — gushing out of its surface in jets. The team also picked ...

and will probably be the brightest comet of 2025. It has already achieved a brightness similar to famously bright stars like Antares and Spica – however, that doesn’t mean it’s easy to see ...

Astronauts witnessed the brightest comet of 2025 from space as it streaked across the sky above Earth. A new photo taken from the vantage point of the International Space Station (ISS) captures ...

The way comets behave in space may seem random, but new research suggests there’s more order behind the chaos than once ...

The galaxy sits in a sweet spot that allows astronomers to study it in ways that can't be applied to even our own Milky Way ...

Astronomers celebrated the release of the first images from the Rubin Observatory — and registered hundreds of its first ...

Leo sees action as both Mars and Comet Schwassmann-Wachmann 1 move through; plus, spot galaxies and noctilucent clouds in the sky this week.

While he’s not hanging up his hat, Dave Van Horn knows he’s in the late innings of his career. Tom Shatel writes, along with ...

Towards the end of the month, Mercury will be visible in the western horizon, the space agency said. Californians can observe the planet hanging low in the sky beginning 30 minutes after the sun set ...

Amherst has seen it all this postseason. Whether it’s a five-run deficit in the seventh inning or a blowing a three-run lead, ...

The massive core of our Milky Way galaxy serves as the backdrop to Full Moons, planetary conjunctions, and meteor showers ...

The Vera Rubin Observatory is expected to discover 20 billion new galaxies over the next decade. This image shows another ...