It's an extremely rare opportunity to spot a "relic from the birth of the Solar System." The post Visitor Approaches From the ...

Even at a glance, the planets in our solar system are wildly diverse. Huge and small, airless and densely packed with ...

When you think of outer space, you're likely picturing stars, planets and moons. But much of space is filled with clouds of ...

A rare comet from another star system is revealing just how different alien solar systems may be from our own.

Eleven objects found at the extremities of the solar system could mark the location of a 'Kuiper Belt 2.' When you purchase through links on our site, we may earn an affiliate commission. Here’s how ...

Aliza Chasan is a Digital Content Producer for "60 Minutes" and CBSNews.com. She has previously written for outlets including PIX11 News, The New York Daily News, Inside Edition and DNAinfo. Aliza ...

Oh, we humans do love a cleanly defined boundary, don’t we? They make things easier, after all. If we’re trying to categorize something, knowing what labeled bin to put it in is handy. If we’re ...

Our solar system is a smashing success. A new study suggests that from its earliest period — even before the last of its nebular gas had been consumed — Earth’s solar system and its planets looked ...

Spiral Galaxy from Kirkland et al. CREDIT Chris Kirkland and colleagues. A new study of zircon crystals from two of Earth’s oldest continents indicates that the formation of Earth’s continental crust ...

Discover the hottest planet in the solar system, why Venus is hotter than Mercury, planet temperature facts, greenhouse ...

Astronomers have spotted something surprising in the far outer Solar System—a faint, short-lived atmosphere clinging to a ...