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 ...

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 ...

Understanding the various types of orbits is essential for grasping how satellites and spacecraft manoeuvre around Earth and other celestial bodies. Each orbit type serves a specific purpose based on ...

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 ...

North Korean leader Kim Jong Un has been quoted by state media as saying that the country will launch a number of reconnaissance satellites in coming years to provide its forced with real-time ...

Chinese rocket researchers are working on combining the Yuanzheng 1B upper-stage vehicle and the Long March 2C for a sun-synchronous orbit mission in 2018, according to the China Academy of Launch ...

Both PSLV (Polar Satellite Launch Vehicle) and GSLV (Geosynchronous Satellite Launch Vehicle) are the satellite-launch vehicles (rockets) developed by ISRO. PSLV is designed mainly to deliver the ...