Space calendar 2021: Rocket launches, sky events, missions & more!

LAST UPDATED March 26: These dates are subject to change, and will be updated throughout the year as firmer dates arise. Please DO NOT schedule travel based on a date you see here. Launch dates collected from NASA, ESA, RoscosmosSpaceflight Now and others.

Watch NASA webcasts and other live launch coverage on our “Watch Live” page, and see our night sky webcasts here. Find out what’s up in the night sky this month with our visible planets guide and skywatching forecast

Wondering what happened today in space history? Check out our “On This Day in Space” video show here!


March 28: The full moon of March, known as the Full Worm Moon, arrives at 2:48 p.m. EDT (1817 GMT).

March 28: Venus reaches its greatest brightness in its 2021 evening apparition, shining brightly at magnitude -3.9. Catch the planet just above the western horizon at sunset. 

March 29: SpaceX may attempt to launch its Starship SN11 prototype at the company’s Starbase facility in South Texas. Watch it live


April 6: Conjunction of the moon and Saturn. The waning crescent moon will swing about 4 degrees to the south of Saturn in the dawn sky. 

April 7: Conjunction of the moon and Jupiter. The waning crescent moon will swing about 4 degrees to the south of Jupiter in the dawn sky.

April 7: A SpaceX Falcon 9 rocket will launch approximately 60 satellites for SpaceX’s Starlink broadband network in a mission designated Starlink 23. It will lift off from Space Launch Complex 40 at Cape Canaveral Space Force Station in Florida, at 12:34 p.m. EDT (1634 GMT). Watch it live

April 9: A Russian Soyuz rocket will launch the crewed Soyuz MS-18 spacecraft to the International Space Station with NASA astronaut Mark Vande Hei and two Russian cosmonauts, Oleg Novitsky and Pyotr Dubrov. It will lift off from the Baikonur Cosmodrome in Kazakhstan, at 3:42 a.m. EDT (0742 GMT). The Soyuz MS-18 is scheduled to arrive at the space