The stars in this study range in ages from very young to middle-aged like our Sun. This new study shows how comets play a role in the formation of stars and planetary systems. Credit: Luca Matra.

Some of this stuff is known as mysterious dark matter, others are things like dark comets, which as their name suggests ... seven dark comets to the list, including bigger ones that inhabit ...

“Some comets are like couples—they break up, but then they get back together down the road,” says Distinguished Professor Daniel Scheeres of the Ann and H.J. Smead Department of Aerospace Engineering ...

For the first time, astronomers have imaged dozens of belts around nearby stars where comets and tiny pebbles within them are orbiting. This result reveals regions around 74 stars spanning a wide ...