Gravitational wave events hint at ‘second-generation’ black holes
GW241011 and GW241110 infographics by Shanika Galaudage / Northwestern University / Adler Planetarium. Credit: Shanika Galaudage / Northwestern University /...
Astro
Spectral biosignatures of airborne microbes in planetary atmospheres
Artist's illustration of the TRAPPIST-1 system with TRAPPIST-1 e in the lower right. This study examined the potential for finding...
The cosmic microwave background is a wall of light—here’s how we might see beyond it
An illustration showing the timeline of the universe as we see it, looking at ever more distant objects. Clear in...
Now in 3D, maps begin to bring exoplanets into focus
Credit: Pixabay/CC0 Public Domain Astronomers have generated the first three-dimensional map of a planet orbiting another star, revealing an atmosphere...
XRISM catches a pulsar’s cosmic wind—and sees a surprising result
An artist's conception of a pulsar/main sequence star pair, similar to the one featured in the study. Credit: ESA The...
AI learns to identify exploding stars with just 15 examples
Diagram displaying how Google Gemini was used to analyze images and identify changes, including explosive events. Credit: Stoppa, Bulmus et...
Mysterious transient objects in sky linked to nuclear testing and unidentified anomalous phenomena
Four exposures of the 3 × 3 arcmin region of sky centered on the triple transient identified in July 1952. Upper left:...
Black hole discovered in nearby Segue 1
Believe it or not, there's a galaxy at the center of this image. Segue 1 is a very faint dwarf...
Dwarf galaxies tip the scales in favor of dark matter over modified gravity
In spiral galaxies like M33 (left), the link between visible matter and gravitational acceleration is well established. Faint dwarf galaxies...
The Tycho supernova’s hidden secret
Tycho's Supernova Remnant. In 1572, the Danish astronomer Tycho Brahe observed and studied the explosion of a star that became...