NASA's TESS Spacecraft Is Finding Hundreds of Exoplanets--and Is Poised to Find Thousands More

Within just 50 light-years from Earth, there are about 1,560 stars, likely orbited by several thousand planets. About a thousand of these extrasolar planets, known as exoplanets, may be rocky and have a composition similar to Earth's. Some may even harbor life. Over 99 percent of these alien worlds remain undiscovered--but this is about to […]