These Rogue Worlds Upend the Theory of How Planets Form
Scientists have recently discovered scores of free-floating planets that defy classification—forcing them to rethink their theories of star and planet ..
Scientists have recently discovered scores of free-floating planets that defy classification—forcing them to rethink their theories of star and planet ..
The NASA team hopes the iconic spacecraft and its twin can continue taking data beyond the solar system past their 50th birthdays. ..
Phil Plait’s new book, Under Alien Skies, helps space fans imagine what it would be like to visit stars and other worlds. ..
The two probes made flybys of Jupiter and Saturn in the 1970s. Today they’re still doing science way out beyond our solar system. ..
In an influential report that comes out once a decade, researchers propose a space mission to Uranus and a lander to Saturn’s moon, Enceladus. ..
Scientists think the diminutive planet’s surface could be covered with space gems, thanks to an abundance of carbon and pressure from colliding asteroids. ..
The discovery of the first wind-driven aurora sheds light on a strange phenomenon playing out below Saturn’s stormy atmosphere. ..
To support life, a planet has to stay in its star’s “habitable zone.” But research on a nearby star shows that life-friendly zones won’t stay that ..
Jupiter’s most enigmatic moon, one of a few ocean worlds in the solar system, will be the target of upcoming missions by NASA and the European Space ..
The brown dwarf isn't a star and it's not a planet. But it's illuminating the murky borderlands that separate the two. ..