After several weather delays, NASA on Saturday launched a helium balloon carrying a saucer-shaped vehicle high in Earth’s atmosphere to test technology that could be used to land on Mars.
The U.S. space agency is getting ready to launch a “flying saucer” into Earth’s atmosphere to test technology that could be used to land on Mars.
The Milky Way contains at least 17 billion planets the size of Earth, and likely many more, according to a study out Monday that raises the chances of discovering a sister planet to ours.
Flying in formation around the moon, a pair of NASA probes began mapping the lunar gravity field in hopes of figuring out why Earth’s only natural satellite is shaped the way it is.
Some 8.7 million different species exist on Earth, though a tiny amount of those have actually been discovered and catalogued, researchers said Tuesday.