Sunday, July 3

Tag: NASA

Atlas 5 launches Space Force satellite to test early warning technology
Science

Atlas 5 launches Space Force satellite to test early warning technology

After waiting out cloudy weather, the U.S. Space Force launched two satellites atop an Atlas 5 rocket Friday to test ballistic and hypersonic missile early warning and tracking technology and to deploy a maneuverable spacecraft carrying an unknown number of classified payloads.Already running a day late because of stormy weather, the $1.1 billion USSF-12 mission got off to a ground-shaking start at 7:15 p.m. EDT when its United Launch Alliance rocket thundered to life with 2.3 million pounds of thrust from its first stage engine and four strap-on boosters.Trailing a spectacular jet of flaming exhaust, the 196-foot-tall rocket rapidly climbed from pad 41 at the Cape Canaveral Space Force Station, knifing through low clouds and quickly disappearing from view as it streaked away to th...
Webb telescope still performing well after micrometeoroid impact on mirror segment, NASA says
Science

Webb telescope still performing well after micrometeoroid impact on mirror segment, NASA says

A high-speed dust-size micrometeoroid slammed into one of the James Webb Space Telescope's 18 primary mirror segments last month, causing a slight but noticeable effect on the segment's performance, NASA said Wednesday. It was the fifth such impact detected since Webb's Christmas Day launch.Given the $10 billion telescope's open design, with its mirrors exposed to space, engineers expected random hits by bits of space dust over the life of the observatory, but an impact between May 23 and 25 was larger than pre-flight models predicted.After analyzing the C3 mirror segment's post-impact performance, engineers sent commands to actuators on the back of the mirror to ever-so-slightly reposition it, counteracting most, but not all, of the impact's observed results. Even with the hit, NA...
Four SpaceX Crew-3 astronauts undock from space station, head for early Friday splashdown off Florida
Science

Four SpaceX Crew-3 astronauts undock from space station, head for early Friday splashdown off Florida

Four long-duration space station astronauts bid their lab crewmates farewell and undocked from the International Space Station early Thursday, setting off for a scheduled pre-dawn splashdown off the coast of Florida on Friday morning to close out a 176-day mission.SpaceX Crew-3 commander Raja Chari, pilot Thomas Marshburn, submariner-turned-astronaut Kayla Barron and European Space Agency astronaut Matthias Maurer strapped into their ferry ship — the Crew Dragon Endurance — and backed away from the outpost at 1:05 a.m. EDT Thursday. The Crew Dragon Endurance, carrying commander Raja Chari, pilot Thomas Marshburn, Kayla Barron and European Space Agency astronaut Matthias Maurer, undocked and backed away from the International Space Station early Thursday, setting up ...
Four space station astronauts prep for overnight undocking, early Friday splashdown
Science

Four space station astronauts prep for overnight undocking, early Friday splashdown

Four long-duration space station astronauts packed up their Crew Dragon capsule Wednesday, bid their lab crewmates a formal farewell and set their sights on an overnight undocking and splashdown off the coast of Florida early Friday to close out a 176-day mission.Pending a final weather check, SpaceX Crew-3 commander Raja Chari, pilot Thomas Marshburn, submariner-turned-astronaut Kayla Barron and European Space Agency astronaut Matthias Maurer planned to strap into their ferry ship and undock from the outpost around 1:05 a.m. EDT Thursday.Because of the station's position in its orbit relative to the Gulf of Mexico landing zone, the astronauts will have to spend nearly a full day cooped up inside the SpaceX capsule before they'll be in the right place, at the right time, to drop ou...