Earth
Ancient rocks hold proof of Earth’s magnetic field. Here’s why that’s puzzling
Science
A 3.7-billion-year-old record of our planet’s ancient magnetism has been unearthed, providing evidence that Earth’s magnetic field already existed very early in ...
Earth’s weird ‘quasi-moon’ Kamo’oalewa is a fragment blasted out of big moon crater
Science
Earth’s “quasi-moon” was likely blasted away from the actual moon relatively recently in the solar system’s history, a new study suggests. Kamo’oalewa, ...
Distant spacecraft sends data to Earth for first time in 5 months
Science
The most distant spacecraft from Earth has resumed sending data after a five-month gap, NASA said Monday. NASA’s Voyager 1 spacecraft was ...
Why you should celebrate climate change optimism
U.S.
Earth Day: 5 facts on evolution of pollution awareness Discover how Earth Day evolved from an awareness campaign aimed at college students ...
NASA astronaut Loral O’Hara missed the total solar eclipse, but saw Earth ‘moving’ below her during spacewalk (photos)
Science
NASA astronaut Loral O’Hara was prepared for her first spacewalk — but not for the view. O’Hara, along with SpaceX Crew-7 NASA ...
NASA is seeking a faster, cheaper way to bring Mars samples to Earth
Science
CAPE CANAVERAL, Fla. (AP) — NASA’s plan to bring samples from Mars back to Earth is on hold until there’s a faster, ...
NASA rethinks plan to return rare Mars samples to Earth
Science
Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. NASA is seeking ...
Why do total solar eclipses happen? Learn what causes the celestial show
Science
The next total solar eclipse takes shape Monday, April 8, when an overlap between the sun and the moon is expected to ...
Astro-tourism − chasing eclipses, meteor showers and elusive dark skies from Earth
Science
For years, small groups of astronomy enthusiasts have traveled the globe chasing the rare solar eclipse. They have embarked on cruises to ...
Soyuz brings U.S. astronaut, 2 station crewmates, back to Earth
Science
A Russian Soyuz ferry ship undocked from the International Space Station and flew back to Earth early Saturday, bringing a Russian cosmonaut, ...
