![Artist's concept of a stellar black hole siphoning material from a companion star](jpg/eso1028ac72e.jpg)
We’ve Finally Seen Matter Plunge into a Black Hole
For the first time, scientists observed matter’s free fall into a black hole’s “plunging region”
We’ve Finally Seen Matter Plunge into a Black Hole
For the first time, scientists observed matter’s free fall into a black hole’s “plunging region”
How Can You ‘See’ a Black Hole?
How do astronomers find the darkest objects in the universe?
How to See the Lunar Far Side Right Here on Earth
Perspective and subtle motion allows us to peek over the moon’s edge and into its far side
Could Gravitational-Wave ‘Memories’ Prove Einstein Wrong?
According to Albert Einstein’s general theory of relativity, the universe remembers every gravitational wave—and scientists could soon test these cosmic recollections
Three Times That Solar Eclipses Transformed Science
From the discovery of new elements to the testing of novel theories of gravity, total solar eclipses have helped spark scientific progress for centuries
Sometimes We Can Have Nice Things: Our 10 Favorite Feel-Good Stories of 2023
Here’s the best, most inspiring and coolest science we encountered this year
Euclid Space Telescope Releases Stunning First Science Images
Fresh images show off the Euclid space telescope’s ability to capture crisp pictures of vast swaths of sky
A Possible Crisis in the Cosmos Could Lead to a New Understanding of the Universe
Several unexplained measurements are threatening to upend scientists’ understanding of the universe’s origin and fate
‘Modified’ Gravity May Make Planet Nine Disappear
Strange patterns in the orbits of small objects in the outer solar system could be explained by gaps in our understanding of gravity rather than an as-yet-unseen new world
Many-Mirrored Galaxies Deepen Dark Matter Mystery
A surprisingly complex galaxy cluster suggests that in the search for dark matter, nothing is as simple as it seems
Will the Universe Ever Stop Expanding?
Scientists debate what the future of the cosmos looks like and whether space will ever stop getting bigger and bigger
A Background ‘Hum’ Pervades the Universe. Scientists Are Racing to Find Its Source
Astronomers are now seeking to pinpoint the origins of an exciting new form of gravitational waves that was announced earlier this year