This marks the second consecutive GPS III satellite to be switched from ULA to SpaceX, following December’s launch of GPS III ...

The ambitious plan for a new U.S. missile-defense shield needs to navigate technology hurdles and budget questions.

WASHINGTON — The U.S. Space Force awarded Raytheon a $379.7 million contract extension to continue development of the ...

Failure of the satellite control system to maintain the required pointing accuracy ... In this paper, the combined effect of the TDI steps, satellite attitude parameters, and orbital altitude ...

Chutian-001, which was launched from the Jiuquan Satellite Launch Centre a year ago, showed core capabilities – including satellite system performance ... satellite control in very low orbits ...

Experts say that underinvestment really is the root cause of most of the headaches in the current U.S. air traffic control system ... and writes the Cruising Altitude column for USA TODAY.

At the same time, the federal government continues to invest billions into outdated radar and communications systems, many of which ... for tracking and identifying low-altitude drone activity. Air ...

There has been a lot of concerns about BART's outdated train control system. But BART officials say that wasn't the problem Friday morning, saying the root cause had to do with network devices not ...