Aging NASA Telescope Expected to Crash Back to Earth in Days

Aging NASA telescope the Swift Observatory is expected to fall back to Earth by Friday after a failed attempt to rescue it last week. Most of the 1.5-ton telescope is expected to burn up in the atmosphere as it falls, but some pieces made of dense tungsten and some mirror parts could survive reentry, Brad Cenko, the mission’s chief scientist, told the Associated Press. Any surviving wreckage will most likely end up in the ocean. But parts of Africa, Australia, India, Southeast Asia, and Central and South America are within the reentry zone. The Swift Observatory is a 22-year-old telescope launched into orbit on Nov. 20, 2004, to search for gamma-ray bursts and supernovas. Intense solar activity over the past few years dragged Swift down faster than usual, but the telescope was never expected to remain in space indefinitely. “We’ve known this day would come since before Swift was launched. At least in low-Earth orbit, what goes up must come down. And that end is catastrophic,” Pennsylvania State University’s John Nousek, an astronomer who led the control team, said. Swift captured more than 2,000 gamma-ray bursts, 1,400 exploding stars, a slew of comets, asteroids, and star-shredding black holes. The telescope was able to swiftly swivel—the source of its name—toward erupting celestial events.

















