New work from Carnegie’s Alan Boss and Sandra Keiser provides surprising new details about the trigger that may have started the earliest phases of planet formation in our solar system. It is ...

Could a comet passing through the inner solar system be older than the Sun itself? That question sits at the center of the ...

Mercury has long baffled astronomers because it defies much of what we know about planet formation. A new space mission ...

The world’s largest digital camera has just delivered on its promise, catching a massive, fast spinning asteroid in the act ...

Grab-and-go missions to asteroids have provided some of the most scientifically valuable samples since the Apollo ...

A gentle bump goes a long way in the Kuiper Belt. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. A new study from researchers at the Southwest ...

The Sun's formation caused temperature differences in the surrounding disk of gas and dust. Inner, hotter regions formed rocky planets from less volatile elements. Outer, colder regions allowed ...

Short-lived radioisotopes such as aluminum-26 influenced early solar system heat, water retention and the formation of Earth-like rocky planets, according to meteorite analyses and models.

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. This article was originally published at The Conversation. The publication contributed the ...

The most striking claim about 3I/ATLAS is its estimated age range of 8-14 billion years. This analysis, led by Michele ...

Earth may have a moon today because a nearby neighbor once crashed into us, a new analysis of Apollo samples and terrestrial rocks reveals. When you purchase through links on our site, we may earn an ...