Science teams at NASA and the French space agency Centre National d’Études Spatiales (CNES) have released the first-ever global estimate of river discharge and suspended sediment, as observed from space, marking a new milestone in our ability to understand one of Earth’s most fundamental systems.   Developed using data from the Surface Water and Ocean Topography

Satellites are emerging as a powerful new tool in the fight to curb emissions of methane. While methane is much shorter-lived in the atmosphere than carbon dioxide, it’s vastly more potent at trapping heat, which makes rapid cuts essential for slowing warming in the short-term. The same satellite technology that has transformed methane monitoring in

While continental in scale, the ozone hole over the Antarctic was small in 2025 compared to previous years and remains on track to recover later this century, NASA and the National Oceanic and Atmospheric Administration (NOAA) reported. The hole this year was the fifth smallest since 1992, the year a landmark international agreement to phase

Across the world’s oceans, including U.S. territorial waters, some vessels deliberately “go dark,” switching off AIS (cooperative beacon) to operate undetected. These actions can mask illegal fishing, pollution or non-compliant operations, posing risks to maritime safety, fair competition and environmental security.  With its constellation of 17 satellites, Unseenlabs detects radiofrequency (RF) emissions from ships’ onboard electronics, enabling