Comets/Asteroids

Understanding these ancient objects that sometimes produce cometlike tails may help explain how the solar system formed.
Tom Metcalfe, Contributor
Sorting out space rocks and setting the record straight.
Inside Science Contributor
Catch a glimpse of a meteor shower this month.
Inside Science Contributor
To researchers' surprise, Comet 67P/Churyumov–Gerasimenko has ice that's fluffier than freshly fallen snow.
Rebecca Boyle, Contributor
Photographers and scientists capture breathtaking images of NEOWISE as it made its world tour.
Abigail Malate, Staff Illustrator
Enjoy ginormous candy canes, stellar glitter, and visiting (interstellar) neighbors this month.
Abigail Malate, Staff Illustrator
Quiver at the sight of skeletal galaxies, stellar pumpkins and ghostly interstellar visitors.
Abigail Malate, Staff Illustrator
New research suggests the interstellar interlopers may indicate the presence of a vast number of as yet undetected giant exoplanets.
Charles Q. Choi, Contributor
A month's worth of cool science stories summed up.
Alistair Jennings, Contributor
Enjoy the start of astronomical autumn with black holes, a comet, star clusters and other stunning images.
Abigail Malate, Staff Illustrator
A month's worth of cool science stories summed up.
Alistair Jennings, Contributor
Researchers in Antarctica turned up a large amount of a form of iron likely forged in nearby supernova explosions.
Ramin Skibba, Contributor