The Extreme-Ultraviolet Explorer (EUVE) was a spinning spacecraft designed to rotate about the earth/sun line. EUVE was a part of NASA's Explorer spacecraft series, and designed to operate in the extreme ultraviolet (EUV) range of the spectrum, from 70 - 760 Angstroms. This spacecraft's objective was to carry out a full-sky survey, and subsequently, a deep-survey and pointed observations. Science objectives included discovering and studying UV sources radiating in this spectral region, and analyzing effects of the interstellar medium on the radiation from these sources.
Delta II was an expendable launch system, originally designed and built by McDonnell Douglas. Delta II was part of the Delta rocket family and entered service in 1989. Delta II vehicles included the Delta 6000, and the two later Delta 7000 variants ("Light" and "Heavy"). The rocket flew its final mission ICESat-2 on 15 September 2018, earning the launch vehicle a streak of 100 successful missions in a row, with the last failure being GPS IIR-1 in 1997.
A pair of satellites officially described as for cartographic surveying purposes, details TBD.
Fifth flight of the Firefly Alpha small sat launcher, carrying eight cubesats for NASA's ELaNa 43 (Educational Launch of a Nanosatellite) mission.
A batch of 20 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
The Advanced Land Observing Satellite-4 (ALOS-4) is a Japanese satellite designed to observe the Earth's surface using a phased array type L-band syn…
Chinese communication geostationary satellite for unknown purposes.
Second batch of satellites for a reconnaissance satellite constellation built by SpaceX and Northrop Grumman for the National Reconnaissance Office t…
A batch of 23 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
The Geostationary Operational Environmental Satellite-U (GOES-U) is the fourth of the next generation of geostationary weather satellites, known as t…
A batch of 20 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
A batch of 22 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.