Space & Earth

Figure 1. Ionospheric total electron content over the United States during the geomagnetic storm at 22:00 UT on May 10, 2024. The map is derived from the Global Positioning System (GPS) signals. The map shows a steep north-south gradient that impacted GPS position accuracy. Adapted from Figure 3d of the paper. (Credit: Authors)

July 8, 2025

Analysis of geomagnetic storm shows need for mitigation during ionospheric disruptions

By Tracy Cozzens

Credit: Eric S. Bartelt / USMA PAO-VI

July 7, 2025

Seen & Heard: Mapping electronic warfare, Türkiye’s satellite system and quantum GPS backup

By Jesse Khalil

Photo: Xona Space Systems

July 7, 2025

Xona satellite begins tests for commercial LEO navigation

By Jesse Khalil

Photo: Ramberg / E+ / Getty Images

June 30, 2025

BKZS: Türkiye’s regional GNSS system takes shape

By George Papadakis

Credit: Rocket Lab

June 30, 2025

Rocket Lab to launch ESA’s first LEO-PNT navigation satellites

By Jesse Khalil

Photo: TrustPoint

June 30, 2025

TrustPoint launches third low-Earth orbit satellite

By Jesse Khalil

Photo: SmallSat.org

June 26, 2025

SmallSat Conference heads to Salt Lake City

By Tracy Cozzens

Photo: SFL Missions

June 16, 2025

ESA moves forward with Moon mapping study

By Jesse Khalil

NASA’s Solar Dynamics Observatory captured this image of solar flares on May 11, 2024. The NOAA says there have been measurable effects and impacts from the geomagnetic storm. (Photo: Solar Dynamics Observatory)

June 1, 2025

Solar Storm may impact GPS

By Tracy Cozzens

GNSS receivers can detect disturbances in the ionosphere by measuring delays and changes in electromagnetic radio signals. (Credit: Weizheng Fu, Nagoya University)

May 29, 2025

GNSS receivers show how earthquake sound waves move

By Tracy Cozzens

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