Anyone who steps onto Mars will be crossing a one-way threshold in more ways than one. The physics of getting there and back, ...

Earth’s climate is not only shaped by smokestacks, forests, and oceans. It is also quietly tuned by the slow choreography of ...

How did life begin on Earth? While scientists have theories, they don't yet fully understand the precise chemical steps that ...

Built to last, NASA’s Perseverance rover continues its long journey across Mars, collecting samples and revealing the ...

On average, Martian time ticks roughly 477 millionths of a second faster than terrestrial clocks per Earth day. But the Red ...

Clocks on Mars tick faster by about 477 microseconds each Earth day, a new study suggests. This difference is significantly more than that for our moon, posing potential challenges for future crewed ...

When I was in middle school, my biology teacher showed our class the sci-fi movie “Star Trek III: The Search for Spock.” The plot drew me in, with its depiction of the “Genesis Project” – a new ...

Particles that escaped Earth’s atmosphere accumulated on the lunar surface over billions of years. Here’s what you’ll learn ...

When I was in middle school, my biology teacher showed our class the sci-fi movie Star Trek III: The Search for Spock. The plot drew me in with its depiction of the “Genesis Project”—a new technology ...

Mars at sunset reveals dozens of razor-thin atmospheric layers in stunning detail, helping scientists map dust and ice ...

The piece of Mars travelled 140 million miles to Earth. The “Largest Piece of Mars on Earth” just sold at auction for about $5.3 million— $5,296,000, to be exact. Popular Science has reached out to ...

Venus appears in the southwestern sky at dusk, while the pair of Jupiter and Saturn rule the roost at nightfall in the southeast. Mercury is currently invisible in the sun's glare but will return for ...