The Indian Space Situational Assessment Report reveals 315 successful launches in 2025, placing 4,651 objects in orbit.

Geostationary orbit used to be a parking lot. Some Chinese satellites are circling the lot, tailgating other cars, and pulling into spots that aren't theirs. This report explores nine years of data on ...

Geostationary satellites can collect frequent measurements of temperatures and other characteristics of Earth’s land surfaces, allowing them to detect rapid changes and disturbances. Land surface ...

This image was taken from the International Space Station on March 8, 2004, from a position off the coast of Mauritania. (NASA/DVIDS) The Pentagon is looking for cheap commercial satellites that can ...

Recap of the USSF-87 mission, which launched 4:22 a.m. Feb. 12 atop a ULA Vulcan rocket from Launch Complex 41 in Cape Canaveral. Original story: A rare occurrence in the skies above the Space Coast ...

Learn how geosynchronous orbits work and how to calculate the required orbital altitude. This video walks through the physics and equations that link orbital period, gravitational force, and ...

Shares of Frequency Electronics rose after the company was awarded a contract to provide precision time and frequency systems for a geostationary environmental satellite program. The stock was up 8% ...

1 Shanghai Institute of Satellite Engineering, Shanghai, China. 2 Shanghai Aerospace Electronic Technology Institute, Shanghai, China. This paper presents the design of a 5 m aperture three-reflector ...

Another day, another ambitious company emerges to harness the power of the Sun from Earth's orbit. Okay, it's not quite that common an occurrence, but there are indeed a number of firms giving this a ...

Universe Today reports on new research examining whether geostationary and geosynchronous satellites produce unintended radio signals that could interfere with radio astronomy. Radio telescopes rely ...