After Boeing discloses major software glitches that had previously gone unannounced from December’s uncrewed test flight of the human-rated CST-100 Starliner space vehicle, the vehicle is grounded pending a second test flight that can demonstrate the issues in question have been corrected. The software glitches include the onboard computer’s event timer being off by 11 hours, and a second glitch, had it not been discovered, would have caused the Starliner command module and its separated service module to collide before re-entry – an event likely unsurvivable in a crewed mission. Boeing and NASA will both participate in the investigation of the issues before certifying the Starliner for another flight.

The 860th episode of Doctor Who airs on BBC1 (the 161st episode since the series’ revival), starring Jodie Whittaker, Bradley Walsh, Mandip Gill, and Tosin Cole.
The CW airs the 71st episode of Legends Of Tomorrow, starring Caity Lotz, Matt Ryan, Brandon Routh, and Tala Ashe.
The CW airs the 124th episode of The Flash, a modern-day reboot of DC Comics’ superhero starring Grant Gustin. Katee Sackhoff (Battlestar Galactica) guest stars.
Streaming service CBS All Access debuts
The CW airs the 12th episode of Batwoman, starring Ruby Rose and Rachel Skarsten.
Streaming service CBS All Access debuts 
Streaming service CBS All Access debuts 
Streaming service CBS All Access debuts
Actor Max Von Sydow, a frequent flyer in the science fiction and fantasy genre (among a legendary and very storied history of work in film and TV), dies at the age of 90. Rising to prominence in Ingmar Bergman’s influential 
Streaming service CBS All Access debuts