Since energy is conserved (the gravitational force is conservative), we can use the work/energy equation to determine the speed of the satellite as a function of the distance R from O to P. Since the ...

The liftoff is lined up as Florida's 24th orbital rocket launch of the year from ... then begin a deorbit burn about 5:11 p.m. "NASA and SpaceX met on Sunday to assess weather and splashdown ...

SpaceX has confirmed its planned attempt to launch the Starlink 12-21 mission at 11:21 p.m. Monday night. If it launches, ...