NASA's Webb telescope will have the coolest camera in space

Set to launch on Dec. 22, NASA's James Webb Space Telescope is the largest space observatory in history, and it has an equally gargantuan task: to collect infrared light from the distant corners of the cosmos, enabling scientists ...

Simulated Webb images of quasar and galaxy surrounding quasar

Very distant, active supermassive black holes are the brightest beacons in the universe. Known as quasars, these behemoths are surrounded by equally distant galaxies. In recent decades, researchers have gone on a cosmic treasure ...

Lack of massive black holes in telescope data is caused by bias

Our telescopes have never detected a black hole more massive than 20 times the mass of the sun. Nevertheless, we now know of their existence as dozens of those black holes have recently been "heard" to merge via gravitational ...

Astronomers see dust disk around young super-Jupiter

An international team of astronomers led by scientists from Leiden University has for the first time characterized a dust disk surrounding a young super-Jupiter, which is either a giant planet or brown dwarf. They used so-called ...

G344.7-0.1: When a stable star explodes

White dwarfs are among the most stable of stars. Left on their own, these stars that have exhausted most of their nuclear fuel—while still typically as massive as the Sun—and shrunk to a relatively small size can last ...

'Yellowballs' offer new insights into star formation

A serendipitous discovery by citizen scientists has provided a unique new window into the diverse environments that produce stars and star clusters, revealing the presence of "stellar nurseries" before infant stars emerge ...

Chandra observations reveal extraordinary magnetar

In 2020, astronomers added a new member to an exclusive family of exotic objects with the discovery of a magnetar. New observations from NASA's Chandra X-ray Observatory help support the idea that it is also a pulsar, meaning ...

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