NASA launches Space Shuttle Endeavour on the longest flight of the shuttle program to date – over 16 and a half days – with the ASTRO astronomy experiment package mounted in the cargo bay. Some astronomical observations on this mission are conducted in tandem with the Hubble Space Telescope. Aboard Endeavour for her eighth flight are Commander Stephen Oswald, Pilot William Gregory, Payload Commander Tammy Jernigan, mission specialists John Grunsfeld and Wendy Lawrence, and payload specialists Ronald Parise and Samuel Durrance.
ABC airs the second episode of Hypernauts, created by Christy Marx (Jem) and Ron Thornton (the visual effects artist behind the CGI of Babylon 5), and starring Marc Daniel (Fast Track) and Carrie Dobro (Crusade). 
The 79th episode of Lois & Clark: The New Adventures Of Superman airs on ABC, starring Dean Cain and Teri Hatcher. Lane Davies, Fred Willard, and William Christopher (M*A*S*H) guest star.
The week-long national syndication window opens for the 
The week-long national syndication window opens for 
Canadian broadcaster CHCH-TV airs the eighth episode of Art Monterastelli’s sci-fi series Total Recall 2070, starring Michael Easton and Cynthia Preston, very loosely based on the 1990 film Total Recall. The series will air on the American pay cable channel Showtime later in the year. Chad Allen (Dr. Quinn, Medicine Woman) and Tara Rosling (Star Trek: Discovery) guest star.
After years of delays that forced a rewrite of the entire mission plan, the European Space Agency launches the Rosetta unmanned space probe on a looping, ten-year journey through the solar system that will hopefully take it to a rendezvous with Comet 67/P Churyumov–Gerasimenko in ten years. The mission plan calls for Rosetta to orbit the comet and release a small lander, Philae, to descend to its surface. In the intervening years, Rosetta will also have opportunities to study Mars and various asteroids as it passes by them. Rosetta’s mission profile is similar to that of NASA’s cancelled 1990s CRAF (Comet Rendezvous / Asteroid Flyby) mission.
The 
Big Finish releases a free CD with 
British toymaker Character Options releases 
Having been “on hold” since October 2005 pending an audit of technical and managerial issues related to the mission, NASA formally cancels the Dawn unmanned mission to the asteroid belt. The spacecraft had been intended to lift off in 2006, using an ion propulsion system to visit, orbit, and map not one, but two, of the largest bodies in the asteroid belt between Mars and Jupiter, in the following decade. The mission is cancelled when NASA auditors find unresolved technical issues and project a budget overrun of 20%. Planners and managers for the Dawn mission plan to appeal NASA’s decision.
Cable channel Disney XD premieres the 
Cable channel Disney XD premieres the 
The CW airs the 133rd episode of The Flash, a modern-day reboot of DC Comics’ superhero starring Grant Gustin. This is the long-delayed premiere of the series’ seventh season.
The CW airs the second episode of Superman & Lois, starring Tyler Hoechlin, Elizabeth Tulloch, Jordan Elsass, and Alex Garfin.
The CW airs the 51st and final episode of Batwoman starring Javicia Leslie, Rachel Skarsten, and Meagan Tandy.
The CW airs the 110th episode of Legends Of Tomorrow, starring Caity Lotz, Jes Macallan, Tala Ashe, and Olivia Swann. Though not intended to be, this is the last episode of the series.