A 'circumplanetary disk' of gas and dust that's a lot like the one scientists think made Jupiter's moons surrounds the distant planet PDS 70 c.

This podcast episode digs into why the Hubble constant is so hard to nail down and how a new method might finally get it right.

Astronomers are investigating invisible matter and the workings of the galactic ecosystem.

The black hole at the center of the nearby dwarf galaxy NGC 4395 is around 40 times smaller than astronomers than previously believed.

"The most valuable way to learn how planets form is to study planets, like CI Tau b, that are either still forming or have just formed."

"This mismatch has been growing and has now reached a point that is really impossible to dismiss as a fluke. This is not what we expected..."

Astrophysicists have identified an event 4.6 billion years ago as the likely source of some of the most coveted matter on Earth.

"Perhaps we owe our existence to a nearby supernova explosion..."

A shower of high-energy particles and nearby planets' gravitational pull may make planets in the "habitable zone" of the TRAPPIST-1 system anything but.

"We can't throw neutron stars together in a lab to see what happens, so we have to wait until the universe does it for us..."