Stellar-mass Black Holes

News & Articles

Illustration of the Cygnus X-3 system

NASA, JAXA XRISM Mission Looks Deeply Into ‘Hidden’ Stellar System

4 min read

The Japan-led XRISM (X-ray Imaging and Spectroscopy Mission) observatory has captured the most detailed portrait yet of gases flowing within…

Article3 weeks ago
Illustration of a particle jet emerging from a dying star

NASA’s Fermi Finds New Feature in Brightest Gamma-Ray Burst Yet Seen

4 min read

In October 2022, astronomers were stunned by what was quickly dubbed the BOAT — the brightest-of-all-time gamma-ray burst (GRB). Now…

Article5 months ago

NASA Collaborating on European-led Gravitational Wave Observatory in Space

4 min read

The first space-based observatory designed to detect gravitational waves has passed a major review and will proceed to the construction…

Article11 months ago
This image depicts a gamma-ray burst caused by the merger of two neutron stars. The merger creates gravitational waves (shown as pale arcs rippling outward) being created following the merger of two neutron stars, a near-light-speed jet that produced gamma rays (shown as brown cones and a rapidly traveling magenta glow erupting from the center of the collision), and a donut-shaped ring of expanding blue debris around the center of the explosion. A variety of colors represent the wavelengths of light produced by the kilonova, creating violet to blue-white to red bursts above and below the collision.

Gamma-Ray Bursts: Black Hole Birth Announcements

4 min read

Gamma-ray bursts are the brightest, most violent explosions in the universe, but they can be surprisingly tricky to detect. Our…

Article2 years ago
A gif showing cartoon black holes, one as a crying baby, the other as a king-sized weighlifter

Five Reasons You Wouldn’t Want to Live Near a Black Hole

6 min read

You may have seen a portrayal of planets around supermassive black holes in the movies. But what would the conditions…

Article5 years ago