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Astrophysics

Latest Articles

Cosmologists Debate How Fast the Universe Is Expanding

August 8, 2019

New measurements could upend the standard theory of the cosmos that has reigned since the discovery of dark energy 21 years ago.

Sun’s Puzzling Plasma Recreated in a Laboratory

July 29, 2019

For the first time, researchers have created a scale model of the twisting loops of the sun’s magnetic field.

Big Black Holes Found in the Smallest Galaxies

July 23, 2019

Tiny, dim “dwarf” galaxies have been found to hide gas-spewing black holes.

Wandering Space Rocks Help Solve Mysteries of Planet Formation

July 16, 2019

After an interstellar asteroid shot past the sun, scientists realized that there’s probably a lot of itinerant rocks out there.

The Sun Is Stranger Than Astrophysicists Imagined

May 1, 2019

The sun radiates far more high-frequency light than expected, raising questions about unknown features of the sun’s magnetic field and the possibility of even more exotic physics.

Dark Matter Gets a Reprieve in New Analysis

April 29, 2019

A strange glow coming from the Milky Way’s center was thought to be due to ordinary pulsars. But a new look at a years-old study shows that dark matter might still be responsible.

Q&A

The Astronomer Who’d Rather Build Space Cameras

April 18, 2019

Jim Gunn shaped the theory of the evolution of the cosmos before building cameras and spectrographs for major observatories like the Hubble Space Telescope.

What the Sight of a Black Hole Means to a Black Hole Physicist

April 10, 2019

The astrophysicist Janna Levin reflects on the newly unveiled, first-ever photograph of a black hole.

How Artificial Intelligence Is Changing Science

March 11, 2019

The latest AI algorithms are probing the evolution of galaxies, calculating quantum wave functions, discovering new chemical compounds and more. Is there anything that scientists do that can’t be automated?

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