A new study’s “treasure map” suggests that a planet several times more massive than Earth could be hiding in our solar system, camouflaged by the bright strip of stars that make up the Milky Way.
Discovered only about 50 years ago, Landsat Island off the country’s Atlantic coast bears the name of the world’s first Earth-observing satellite program.
Brian May is the co-founder of the band Queen—and an astrophysicist. He talks to National Geographic about consulting on NASA missions and blending art with science.
Three future missions are headed to faraway moons Europa, Enceladus, and Titan to search for life. To help, scientists are testing their techniques here in our backyard.