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But the distance between Earth and Mars is constantly changing as they orbit the sun ... for transfers to the moon are 1) the Hohmann-like transfer and 2) the Free Return Transfer.

Credit: ISRO WASHINGTON — A recently launched Indian navigation satellite is stranded in a transfer orbit after the failure of its onboard propulsion system and could soon renter. The Indian ...

The Indian Space Research Organisation successfully launched a second-generation navigation satellite, NVS-02, into a geosynchronous transfer orbit using a GSLV rocket in its 100th launch from ...

The three-stage, 167-foot-tall (50.9 meters) GSLV succeeded in its mission, delivering a satellite called NVS-02 to geostationary transfer orbit about 19 minutes after liftoff. NVS-02 is the ...

Columnists Ruth Marcus, James Hohmann and Jason Willick get into it. The Washington Post's Libby Casey, Rhonda Colvin and James Hohmann break down the pushback to President Trump and Elon Musk's ...

Specialization is for insects.” So, in the interest of not being insects, here are my top-five physics equations you should know. 1. Newton’s Second Law I’m sure you've seen this one before ...