In Earth's upper atmosphere, a fast-moving band of air called the jet stream blows with winds of more than 275 miles (442 km) ...

Black holes that have been obscured by clouds of dust still emit infrared light, enabling astronomers to spot them for the ...

Ever since NASA’s James Webb Space Telescope was launched, it’s been revealing more about the universe than even most ...

A newly discovered neutron star is behaving so strangely that it may alter our understanding of the dense remains left behind ...

A little-known chapter of the Hubble Space Telescope’s history is a reminder of the risks of looking at the sun ...

Pinpointing a Milepost Marker Star that Opened the Realm of Galaxies At the dawn of the 20th century, astronomers faced a ...

Using the Cerro Tololo Inter-American Observatory (CTIO), an international team of astronomers have performed deep optical ...

Active galactic nuclei are supermassive black holes at the center of certain galaxies. As matter falls into these black holes ...

Fast radio bursts are mysterious and brief flashes of radio emissions that were thought to be produced by magnetars, highly magnetized rotating neutron stars. Yet magnetars appear primarily in young ...

After a close look with a powerful radio telescope, astronomers are still puzzled by a pair of objects with strange ...

The NIAOT in Nanjing was placed on Washington’s entity list in 2023, not long after shipping the finished spectrograph.

Astronomers have been confounded by recent evidence that the universe expanded at different rates throughout its life. New ...