Articles by

Lisa Grossman

Uranus may have looked weird when NASA’s Voyager 2 flew by

Some of Uranus’ apparent oddities might be due to bad timing. In 1986, the Voyager 2 spacecraft...

A cosmic census triples the known number of black holes in dwarf galaxies

A colossal census of the cosmos has more than tripled the number of active black holes known...

A zombie star’s spiky filaments shed light on a 12th century supernova

Some 6,500 light-years from Earth lurks a zombie star cloaked in long tendrils of hot sulfur. Nobody...

Using AI, historians track how astronomy ideas spread in the 16th century

Historians working with an artificial intelligence assistant have begun tracking the spread of astronomical thinking across Europe...

JWST spots the first known ‘steam world’

This exoplanet’s atmosphere is going full steam ahead. A planet beyond our solar system called GJ 9827d...

NASA’s Europa mission is a homecoming for one planetary astronomer

Planetary astronomer Bonnie Buratti remembers exactly where she was the first time she heard that Jupiter’s icy...

Runaway stars could influence the cosmos far past their home galaxies

Dozens of fugitive stars were caught fleeing a dense star cluster in a satellite galaxy of the...

Europa Clipper is launching to solve an alien mystery

NASA’s Europa Clipper spacecraft will soon be on its way to help solve a quarter-century-old mystery: Could...