Live coverage: International Space Station crew lands in Kazakhstan

Blaming a slew of technical snags and “avoidable errors,” NASA officials said Tuesday that the launch of the James Webb Space Telescope, already years behind schedule, will be delayed to 2020, potentially pushing the mission’s development cost above an $8 billion cap mandated by Congress.

NASA officials released never-before-seen views of a spacecraft landing on another planet Monday, showcasing multi-angle replays recorded by ruggedized high-definition cameras mounted on the Perseverance rover last week when it safely touched down on Mars.

A layer of fog intruding on Vandenberg Air Force Base in California kept nearby observers from seeing any sign of Saturday’s predawn launch of an Atlas 5 rocket carrying a robotic NASA probe to Mars. The only images of the Atlas 5’s fiery takeoff came from remote cameras placed at the launch pad, or from distant viewing points away from the poor visibility.