SLS Block 1 – Spaceflight Now

Stacking complete for SLS boosters

March 9, 2021 Stephen Clark

The twin 177-foot-tall solid-fueled boosters for the first flight of NASA’s Space Launch System have been stacked inside the Vehicle Assembly Building at the Kennedy Space Center to await arrival of the rocket’s cryogenic core stage, which is set for a second engine test on a firing stand in Mississippi later this month.

SLS booster segments arrive in Florida, but stacking on hold until core stage test

June 22, 2020 Stephen Clark

Fueled segments of the solid rocket boosters that will lift off on the first flight of NASA’s Space Launch System have arrived at the Kennedy Space Center in Florida, but officials will hold off on stacking the boosters until the SLS core stage completes a crucial test-firing later this year.

Boeing proposes SLS-launched lunar lander

November 9, 2019 Stephen Clark

Boeing is touting a lunar lander concept that the company claims could launch in one piece on an upgraded version of NASA’s Space Launch System heavy-lift rocket — which Boeing largely builds — and deliver astronauts to the moon’s surface in 2024 without going through NASA’s planned Gateway mini-space station.

NASA confirms first flight of Space Launch System will slip to 2019

April 28, 2017 Stephen Clark

NASA’s top human spaceflight official says the maiden flight of the Space Launch System, a behemoth booster designed to loft astronauts on expeditions into deep space, will be delayed from November 2018 until some time in 2019, according to a report published by a U.S. government watchdog Thursday.