All Stories by Lisa Grossman
- Astronomy
A supermassive black hole orbiting a bigger one revealed itself with a flash
A supermassive black hole binary system has puzzled astronomers for decades. Now they’ve finally seen direct signals from the smaller of the two.
- Planetary Science
JWST captured Enceladus’ plume spraying water nearly 10,000 kilometers into space
NASA’s James Webb Space Telescope reveals the rate at which Saturn’s moon Enceladus spews water and where that water ends up.
- Astronomy
A simulation of a dying star shows how it could create gravitational waves
Massive jets and an expanding cocoon of debris from a collapsing star could be a source of never-before-seen ripples in spacetime.
- Planetary Science
A quake on Mars showed its crust is thicker than Earth’s
Seismic data from NASA’s Insight lander reveal the crust is roughly 50 kilometers thick, with the northern crust being thinner than the south’s.
- Astronomy
The first radiation belt outside the solar system has been spotted
Encircling a Jupiter-sized body about 18 light-years from Earth, the radiation belt is 10 million times as bright as the ones around Jupiter.
- Physics
Black holes resolve paradoxes by destroying quantum states
A classic quantum experiment done near a black hole would create a paradox, physicists report. But not if the black hole collapses quantum states.
- Astronomy
Cosmic antimatter hints at origins of huge bubbles in our galaxy’s center
An excess of positrons in Earth’s vicinity supports the idea that the Fermi bubbles were burped by the Milky Way’s supermassive black hole long ago.
- Astronomy
A stream of cold gas is unexpectedly feeding the far-off Anthill Galaxy
The finding suggests that early galaxies might have gained more of their bulk from streams of cold gas instead of in violent galaxy collisions.
- Astronomy
A neutron star collision may have emitted a fast radio burst
Astronomers spotted both a fast radio burst and gravitational waves from a cosmic smashup in the same part of the sky and at about the same time.
- Space
‘Off-Earth’ asks how to build a better future in space
As humans prepare to live in space someday, ethics should be as much of guide as science and technology, an astrophysicist argues in a new book.
- Planetary Science
A volcano on Venus was spotted erupting in decades-old images
A new look at old data reveals an eruption on Venus in the 1990s that was probably similar to Hawaii’s Kilauea eruption in 2018.
- Astronomy
A runaway black hole has been spotted fleeing a distant galaxy
A bright streak stretching away from a remote galaxy might be the light from stolen gas and new stars caught in the wake of an escaping black hole.
