Q&A with Heino Falcke, principal investigator of the Netherlands-China Low-Frequency Explorer (members only)

NASA officials said Tuesday the weekend test-firing of the Space Launch System moon rocket’s core stage was cut short by an out-of-limits parameter in a hydraulic system for gimbaling, or vectoring, one of its engines. NASA Administrator Jim Bridenstine told Spaceflight Now engineers are “feeling pretty good” about the data gathered during the shortened test-firing, and managers may decide to ship the SLS core stage to the Kennedy Space Center for launch preparations without re-attempting the planned eight-minute hot fire.

Using 21st century images taken by NASA’s Lunar Reconnaissance Orbiter, scientists have reconstructed the view Neil Armstrong had outside the window of the Apollo 11 lunar module as he guided the spacecraft to a safe landing site on the moon 50 years ago.

A new sunshade, or visor, designed to reduce the brightness of SpaceX’s Starlink broadband Internet satellites will debut on the company’s next launch, a measure intended to alleviate astronomers’ concerns about impacts on observations through ground-based telescopes, SpaceX founder Elon Musk said Monday.