If you're lucky, when you look up at the night sky, you'll see thousands and thousands of points of light. These lights each ...

and the science done with them is called optical astronomy. But there's an entire electromagnetic spectrum, of which the visible light our eyes can see is just a sliver. Digital telescopes use a ...

Since 2019, the number of active satellites has more than doubled, reaching nearly 11,700 by May 2025. Satellite constellations, such as SpaceX's Starlink, dominate this space landscape, ...

Finally, in April 2025, MISTRAL delivered stunning images of the supernova remnant Cassiopeia A (Cas-A), one of the sky’s ...

In 1987, an enormous blue arc, thought to be hundreds of trillions of miles long, was first considered one of the largest ...

Born of x-ray astronomy, a novel handheld gamma-optical camera stands at the nexus of medical and industrial imaging. By ...

The sun's corona—the outermost layer of its atmosphere, visible only during a total solar eclipse—has long intrigued ...

Researchers at the International Center for Radio Astronomy Research (ICRAR) made the discovery about galaxies by studying ...

A new device uses quantum optics to filter out starlight in real time — bringing scientists closer to directly observing ...

The Giant Magellan Telescope offers sharper images, efficient light use, and the ability to find Earth-like planets.

Merely finding them in the first place — detecting their radio voices and photographing their odd and telltale light— was a cooperative triumph of radio and optical astronomy. It was Schmidt ...

Dubbed AT2024tvd, the burst of radiation from this " tidal disruption event " (TDE) was also picked up by NASA's Chandra ...