SAN DIEGO — Orbital Sciences Corp. expects to have U.S. government approval within about a year for using its Antares rocket to launch payloads to sun-synchronous orbit from NASA’s Wallops Flight ...

In yesterday’s post we suggested that the reason for the near polar orbit of most imaging satellites was to improve coverage. After a bit more research it turns out to be more interesting than that.

Arianespace’s Ariane 5 launcher once again demonstrated its operational maturity and accuracy today by placing a seven-satellite payload into Sun-synchronous orbit. Drawing of the Ariane 5 payload ...

BEIJING—Chinese space launch company Link Space is working toward a 2022 first flight of a reusable rocket intended to place 180-kg (400-lb.) payloads in Sun-synchronous orbits for a price of 20 ...