Astronauts To Patch Up NASA’s NICER Telescope

NASA is planning to repair NICER (Neutron star Interior Composition Explorer), an X-ray telescope on the International Space Station, during a spacewalk later this year. It will be the fourth science observatory in orbit serviced by astronauts. In May 2023, scientists discovered that NICER had developed a “light leak.” Unwanted sunlight was entering the instrument […] Read more