Revisiting Black Holes as Dark Matter

Could dark matter be made of intermediate-mass black holes formed in the beginning of the universe? A recent study takes a renewed look at this question.

Big Bang

Scientists may have solved a decades-old puzzle about the formation of our universe.

During the Late Heavy Bombardment, which ended 3.8 billion years ago, large impactors pelted the Moon, creating huge craters that have survived to this day. [Chris Butler/SPL]

Astrobites reports on the large impactors that pelted the Moon until 3.8 billion years ago, creating huge craters that have survived to this day.


A new study reveals a set of extremely compact and dense galaxies in distant galaxy clusters.

Coronal jet simulation

Simulations of Solar Jets

How do jets emitted from the Sun’s surface contribute to its corona and to the solar wind?

climate model

Having a giant planet like Jupiter next door can really wreak havoc on your orbit! What might such a bad neighbor mean for the long-term climate of an Earth-like planet?

Tibet Air Shower Array

Anisotropies in Our Galaxy

Astrobites reports on cosmic rays observed at Earth with the Tibet Air Shower experiment.

bow shock nebulae

More than 700 candidate stellar bow shock nebulae — signs of runaway stars — have been discovered in the Milky Way.

Circumstellar disk

For the first time, scientists have imaged a very young, high-mass binary system and resolved the individual disks that surround each star and the circumbinary disk surrounding the pair.