supernova remnant
The Outer Reaches of the Milky Way are Full of Stars, and the JWST is Observing Them
The Milky Way's outer reaches are coming into view thanks to the JWST. Astronomers pointed the powerful space telescope to…
These Three Neutron Stars Shouldn't Be So Cold
Neutron stars are among the densest objects in the Universe, second only to black holes. Like black holes, neutron stars…
First Light from Einstein Probe: A Supernova Remnant
On 9 January 2024, the Einstein probe was launched, its mission to study the night sky in X-rays. The first…
This Supernova Lit Up the Sky in 1181. Here’s What it Looks Like Now
Historical astronomical records from China and Japan recorded a supernova explosion in the year 1181. It was in the constellation…
This is a 1.3 Gigapixel Image of a Supernova Remnant
Stars more massive than the Sun blow themselves to pieces at the end of their life. Usually leaving behind either…
Japan’s New X-Ray Observatory Sees First Light
XRISM, the X-ray Imaging and Spectroscopy Mission, is a joint NASA/JAXA mission led by JAXA. The X-ray space telescope began…
JWST Delivers A Fantastic New Image Of Supernova Remnant Cassiopeia A
Astronomy is all about light. Sensing the tiniest amounts of it, filtering it, splitting it into its component wavelengths, and…
Webb’s Infrared Eye Reveals the Heart of the Milky Way
The JWST is taking a break from studying the distant Universe and has trained its infrared eye on the heart…
An Amateur Astronomer Discovered One-of-a-Kind Supernova Remnant
In 2013, amateur astronomer Dana Patchick was looking through images from the Wide-field Infrared Survey Explorer archive and discovered a…
Astronomers Have Been Watching a Supernova’s Debris Cloud Expand for Decades with Hubble
Twenty thousand years ago, a star in the constellation Cygnus went supernova. Like all supernovae, the explosion released a staggering…