By Marc J. Berkowitz, Defense Opinion Writer. The United States has ceded its leadership position in space-based positioning, navigation and timing (PNT), with stark ramifications for most all U.S.

You may have seen a string of lights in the night sky overnight, but what are these lights and why are they in a straight line? The train of lights in the sky is not drones; rather, they are from ...

A new study reveals advanced methods for improving orbit determination (OD) of large constellations of Low Earth Orbit (LEO) satellites, utilizing Global Navigation Satellite System (GNSS) ...

Rocket Lab launched a high-resolution Earth-imaging satellite toward low Earth orbit this evening (Feb. 18). An Electron vehicle carrying the first "Gen-3" satellite for the geospatial intelligence ...

China has managed to deliver a pair of satellites into lunar orbit despite the spacecraft initially being stranded in low Earth orbit following a rocket failure, using a mix of complex calculations, ...

Planet demographics reveal a puzzling lack of worlds in a certain size range throughout the galaxy F or centuries our solar ...

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Trans-Neptunian objects (TNOs) are icy bodies that vary widely in size, from large dwarf planets like Pluto and Eris—each ...

Before arriving at the moon, the small satellite mission will use the gravity of the sun, Earth, and moon over several months ...

The Lunar Trailblazer satellite will depart at the end of the month on a mission to find and map water on the surface of the ...

Scientists are studying Saturn's moon Titan to assess its tidal dissipation rate, the energy lost as it orbits the ringed planet with its massive gravitational force. Understanding tidal dissipation ...

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