As an astronomer studying the universe beyond Earth, I’m fond of “outside the box” views almost by default. But one of my favorites is whenever a spacecraft takes a snapshot of our home world and the ...

Envision a time when hundreds of spacecraft are exploring the solar system and beyond. That’s the future that NASA’s ESCAPADE ...

The ESCAPADE mission, which launched to space on a Blue Origin rocket on Thursday, breaks the mold of how planetary science ...

Mars is a cold, dry, desert-like planet. But billions of years ago, scientific evidence suggests that it had a thick ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. A mineral trapped ...

Mars will make its closest approach to Earth this weekend while rising to its highest point in the night sky. When you purchase through links on our site, we may earn an affiliate commission. Here’s ...

There's something big missing from our solar system — and that may be a good thing. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Planetary ...

New research indicates that early Martian volcanoes may have emitted reactive sulfur gases that warmed the planet and supported conditions suitable for microbial life. Although scientists are still ...

A new review of ocean data suggests that more than 99.999 percent of the global deep seafloor has never been seen by humans. But what does that really mean? “In scientific papers, some people [said] ...