Soyuz MS-25 is scheduled to undock from the ISS on Sept. 23 at 4:37 a.m. ET. A NASA astronaut and two record-setting Russian cosmonauts are set to head back to Earth on Monday (Sept. 23), and you ...
LOS ANGELES, Sept. 20 (Xinhua) -- Astronomers using NASA's Chandra X-ray Observatory have found a galaxy cluster that has two streams of superheated gas crossing one another, NASA said on Friday.