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Syncom (for "synchronous communication satellite") started as a 1961 NASA program for active geosynchronous communication satellites, all of which were...

The Vikram (Sanskrit: Vikram, lit. 'Brave'; Namesake: Vikram Sarabhai) is a family of small-lift launch vehicles being developed by Skyroot Aerospace,...

Olena Ivanivna Kazymyrchak-Polonska (21 November 1902 – 30 August 1992) was a Ukrainian astronomer and member of the International Astronomical Union,...