LEO

Celeste becomes the name of ESA’s LEO-PNT mission, that will "mediate: between Galileo and the rest of the world. The name was announced during the celebration of 30 years of European satellite navigation, in September 2025 with two actors enacting a fictional conversation between Galileo Galilei and his imagined great granddaughter Celeste, a satellite navigation engineer working at the ESA. (Credit: ESA / M. Polo)

September 8, 2025

ESA’s Celeste LEO-PNT demonstrator mission set to launch in December

By Jesse Khalil

Photo: TrustPoint

June 30, 2025

TrustPoint launches third low-Earth orbit satellite

By Jesse Khalil

Signal acquisition of Iridium NEXT satellites’ signal in the long baseline positioning scenario. (Credit: Aerospace Information Research Institute)

June 5, 2025

Low-cost antennas power high-precision space-based positioning

By Tracy Cozzens

December 13, 2022

Biden administration pushing for streamlined space rules

By Maddie Saines

December 8, 2022

SpaceX begins partner project designed for national security

By Maddie Saines

December 8, 2022

ESA funding expanded to help boost leading role in satellite navigation

By Maddie Saines

December 8, 2022

Spirent offers SimORBIT to help developers determine LEO for lab tests

By Maddie Saines

Mega-constellations of hundreds or even thousands of low-orbiting satellites offer a means of acquiring continuous coverage for telecommunications services or Earth observation. (Image: ESA)

October 31, 2022

ESA plans for low-orbiting navigation satellites

By Tracy Cozzens

March 1, 2022

WORK Microwave joins Digital IF Interoperability Consortium

By Tracy Cozzens

Image: johan63/iStock/Getty Images Plus/Getty Images

May 25, 2021

Space debris endangers GPS

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