Michigan State University and NASA researchers discover seven dark comets that reveal new solar system secrets.

The so-called 'planetesimal belts' are filled with tiny millimeter-sized particles created by collisions between comets.

Every once in a while, the gravity of a passing star will change the orbit of these dirt balls, sending them into the inner solar system. Some comets have been around for thousands of years ...

Comet ATLAS (C/2024 G3) came within 8.3 million miles of the sun on January 13 as it reached its perihelion, and is now disintegrating.

Mars's moon Phobos is so strange that no one knows how it formed. But a forthcoming mission could solve this mystery - and a ...

As comets approach the center of the Solar System, they send off trails of gas and dust. (Credit: Nazarii_Neshcherenskyi) There aren’t many comets that are visible to observers without binoculars or ...

Comet ATLAS (C/2024 G3) came within 8.3 million miles of the sun on January 13, reaching the perihelion of its massive, 160,000-year orbit through our solar system. The comet was only first ...

The OSIRIS-REx mission returned to the sample to Earth in September of 2023, and these studies show that it contains amino ...

This new year should bring with it lots of new dark comets along with our next-generation observatory. Most importantly, these bodies can transport material around the solar system. We don't know ...

Reintroducing Hawaii's sacred crow, how desert ants find their way, pterosaurs paddle-like tails, and how gophers rebuild ...

The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

Pluto-Charon Formation Scenario Mimics Earth-Moon System Jan. 7 ... asteroids and comets with new solar data sets to develop a revised solar composition that potentially reconciles ...