Astronomers find dozens of massive stars fleeing the Milky Way

The Milky Way can't hold onto all of its stars. Some of them get ejected into intergalactic space and spend their lives on an uncertain journey. A team of astronomers took a closer look at the most massive of these runaway ...

JWST sees four exoplanets in a single system

When the JWST activated its penetrating infrared eyes in July 2022, it faced a massive wish-list of targets compiled by an eager international astronomy community. Distant, early galaxies, nascent planets forming in dusty ...

JWST takes a detailed look at Jupiter's moon Ganymede

Nature doesn't conform to our ideas of neatly-contained categories. Many things in nature blur the lines we try to draw around them. That's true of Jupiter's moon Ganymede, the largest moon in the solar system

New observations confirm important step in star formation

New observations have confirmed a key step in the process of star formation: a rotating "cosmic wind" made of molecules, which is vitally important for collapsing gas clouds to contract sufficiently so as to form a hot, dense ...

Protostars can siphon material from far away, says study

When stars are born, they do it inside a molecular cloud. Astronomers long assumed that the "crèche" supplied all the nutrients that protostars needed to form. However, it turns out they get help from outside the nest.

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