All articles tagged with #radar
A loud boom across Greater Boston Saturday afternoon is likely from a bolide, a meteor exploding in the atmosphere over the ocean. The USGS found no earthquake, but radar detected an anomalous flash consistent with a meteor reentry; NASA confirmation may follow after debris recovery.
NASA’s Earth Observatory uses a NISAR radar-derived false-color composite from 10 passes during the 2025–2026 growing season to visualize crop types and changes in South Africa’s Maize Triangle. Green marks vegetation, red shows unvegetated surfaces, and blue indicates how rapidly vegetation changed, offering a compact, per-pixel view of irrigation effects and land-use shifts over a large agricultural area.
ISRO’s Chandrayaan-2 radar data reveal signatures consistent with buried subsurface ice beneath the floors of four doubly-shadowed craters in the Moon’s south polar region, including a 1.1‑km Faustini inner crater with a lobate rim that hints at an ice-rich impact. The ice lies in permanently dark, ultra-cold craters, preserved for billions of years, and could provide water and fuel for future human missions, making these regions highly strategic for lunar exploration and resource utilization.
An asteroid the size of a blue whale will pass about 56,500 miles from Earth tonight (roughly 24% of the Earth–Moon distance), but it wasn’t discovered until roughly a week ago because key radar facilities are down after Arecibo’s collapse and ongoing Goldstone repairs; only about 1% of Earth-skimming asteroids this size get flagged, even as surveys like Vera Rubin Observatory discover thousands of new objects, highlighting gaps in our planetary defense.
Radar, a RFID-based retail inventory startup backed by Jay Schottenstein, raised $170 million in a Series B led by Gideon Strategic Partners and Nimble Partners, valuing the company above $1 billion and expanding its deployments with retailers like American Eagle and Old Navy. The platform provides real-time in-store inventory visibility to reduce shrink and improve product availability, with reported gains in stock accuracy and lower order cancellation rates for buy-online-pickup-in-store.
A new study demonstrates that drones carrying ground-penetrating radar can map shallow buried ice with high precision, using Earth glaciers in Alaska and Wyoming as analogs; the method could turn detection of Martian ice into actionable drill targets, bridging orbital surveys with surface exploration for future human missions.
NASA’s new NISAR radar satellite has mapped ongoing subsidence in Mexico City, with some zones sinking more than 2 cm per month as the city sits on a drained lakebed. The readings from Oct 2025 to Jan 2026 demonstrate NISAR’s ability to measure ground deformation in dense, cloudy environments and are openly available, highlighting continued urban infrastructure risks and offering a global tool for monitoring subsidence.
Iranian missiles heading toward Turkey were intercepted by NATO air defenses near Hatay and by US destroyers near Incirlik, with analysts suggesting the strikes were meant to test NATO’s air-defense network and potentially assess the Kurecik TPY-2 radar in Malatya; NATO deployed new Patriot batteries to Malatya, highlighting the EPAA and ‘engage on remote’ concept.
Researchers analyzing radar data from the Magellan mission detected what appears to be a large underground lava tube beneath Venus, near the Nux Mons region. The tube is about 1 kilometer wide, with a roof around 150 meters thick and a hollow cavity at least 375 meters high, marking the first confirmed subsurface feature on Venus and supporting long-held ideas about the planet’s volcanic activity. If confirmed, there may be more tubes beneath Venus’ surface, a task for upcoming radar-focused missions VERITAS and EnVision, planned to launch around 2031.
A Nature Communications study using NASA’s Magellan radar data finds a giant subsurface lava tube beneath Venus’ Nyx Mons, about 1 kilometer in diameter and potentially extending at least 45 kilometers, providing the strongest direct evidence yet of Venusian lava tubes; confirming the full extent will require higher-resolution radar data.
ESA’s Biomass, a P-band radar satellite launched in 2025, has completed commissioning and now offers free, public access to its data to map forest structure and carbon storage. The mission begins with an 18-month global tomographic coverage, followed by multiple nine-month interferometric coverages to monitor forest change over time, with an airborne calibration campaign in Gabon aiding data validation and calibration. The effort aims to reduce uncertainties in global forest carbon stocks and support climate science and forest management.
Radar shows widespread rain across Alabama with a ongoing winter weather advisory and an ice storm warning in place; expect lingering precipitation and potential icing, leading to travel hazards as conditions could persist tonight and into the weekend. Local updates from James Spann and the Weather Blog are anticipated for any changes.
Gearbox has added a radar feature to Borderlands 4, responding to fan requests, which will help players with situational awareness. The radar, a departure from the mini-map, was developed quickly by the team and will be available at launch in September, with other fan-requested features also included. The game will launch on PC, PS5, and Xbox Series X|S, with a Switch 2 version coming later.
NASA scientists, using advanced radar technology, have rediscovered Camp Century, a Cold War-era U.S. military base buried beneath Greenland's ice. Originally constructed in 1959 for nuclear missile testing, the base was abandoned in 1967 and now lies under nearly 100 feet of ice. The discovery raises concerns about potential environmental hazards if melting ice exposes the base's remnants, including radioactive waste. The radar imagery, obtained by chance, highlights the importance of understanding ice sheet dynamics in the context of climate change.
A severe thunderstorm watch is in effect for most of southern Lower Michigan until 7 p.m., with a fast-moving line of severe storms already formed and moving east across the region. The storms are expected to hit quickly and be over rapidly, with the most severe part lasting only a few minutes. The main threats include brief gusts of around 60 mph, large hail, and the possibility of isolated tornadoes. Residents are advised to seek shelter indoors and stay updated on the rapidly changing radar imagery.