March 21 in Universe History: Space Missions, Satellites and Exploration
March 21, 2026
2019
On 21 March 2019 local time in French Guiana, Arianespace launched Vega from Europe’s Spaceport, delivering ASI’s PRISMA satellite to a sun-synchronous orbit. The AVUM stage performed two burns for injection and then executed a disposal burn for reentry, enabling hyperspectral imaging for environmental monitoring, agriculture, and pollution tracking.
2020
On 21 March 2020, Arianespace and Starsem successfully delivered 34 OneWeb satellites to low Earth orbit on Soyuz Flight ST28, advancing deployment of the broadband constellation. The launch increased the number of spacecraft available for global connectivity services and continued the program’s early launch cadence.
Related Entities
All names in this article
Alphonsus
ASI
AsiaSat 3S
Atlas-Agena
AVUM
Baikonur
BOLT-2
BurstCube
Cape Canaveral
Cassini
CRS-30
Dragon
Drew Feustel
Europe’s Spaceport
Expedition 1
Expedition 55
Expedition 56
Falcon 9
French Guiana
High Energy Solar Spectroscopic Imager
Imaging Science Subsystem
Ingenuity
International Launch Services
JPL
Kennedy
L4 Lagrange point
Leonardo
Marina Vasilevskaya
Mars 1
MDIS
Mercury
MESSENGER
Mid-Atlantic Regional Spaceport
NASA Planetary Data System
National Reconnaissance Office
NROL-123
Oleg Artemyev
Oleg Novitskiy
OneWeb
PDS4 Standards Reference
Perseverance
PRISMA
Proton
Ranger 9
Ricky Arnold
Rocket Lab Electron
Saturn
Soyuz Flight ST28
Soyuz MS-08
SpaceX
SPICE
Starsem
Terrier-Improved Malemute
Titan
Tracy Dyson
Vega
Wallops
Wallops Island
Asia
Europe
Russia
Air Force Research Laboratory
Earth
Io
Mars
Moon
Sun
International Space Station
Space Shuttle Discovery
STS-102