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After Ukrainian testing, drone-detection radar doubles range with simple software patch

arstechnica.com Unknown 2025-09-28 14:16:51

As part of its unprovoked invasion, Russia has been firing massed waves of drones and missiles into Ukraine for years, though the tempo has been raised dramatically in recent months. Barrages of 700-plus drones now regularly attack Ukraine during overnight raids. Russia also appears to have upped the ante dramatically by sending at least 19 drones into Poland last night, some of which were shot down by NATO forces. Many of these drones are Shahed/Geran types built with technology imported from

Topics: drone drones radar teams ukraine
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NASA’s Largest Satellite Antenna Ever Has Just Unfurled in Space

wired.com Ritsuko Kawai 2025-10-24 14:13:36

A Flower-like satellite has “bloomed” in outer space, unfolding to reveal the largest radar antenna reflector ever put into orbit. The NASA-ISRO Synthetic Aperture Radar (NISAR), a joint project between the US space agency and the Indian Space Research Organization (ISRO), launched on July 30 from the Satish Dhawan Space Center in southeastern India, before unfurling to its full size 17 days later. The spacecraft is now ready to make full-scale observations of the Earth, and will use radar to t

Topics: nasa nisar radar reflector satellite
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This Newly Launched Satellite Just ‘Bloomed’ a Record-Breaking Antenna in Orbit

gizmodo.com Passant Rabie 2025-11-09 18:55:42

A first-of-its-kind satellite recently launched into orbit to monitor Earth’s changing surfaces, detecting movement of the planet’s crust down to fractions of an inch. The satellite packed a giant radar antenna, folded like an umbrella, and it just unfurled the massive, drum-shaped structure through an intricate process that brought it to full bloom. The NISAR mission, a joint effort between NASA and the Indian space agency ISRO, launched on July 30 from Satish Dhawan Space Centre in India. Mor

Topics: antenna mission nasa nisar radar
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Weather Radar APIs in 2025: A Founder's Complete Market Overview

news.ycombinator.com Unknown 2025-11-07 20:57:41

After 10 years of building and maintaining Rain Viewer, I’ve made one of the most difficult decisions of my career: transitioning our API services to limited operation throughout 2025. As the founder who created this service to help developers worldwide visualize weather radar data, I understand the impact this has on your projects and businesses. Rain Viewer isn’t disappearing - we’ll continue providing radar data through our website and maintain our tiled map service for personal and educatio

Topics: api data radar rain weather
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Modern Cars Wreak Havoc on Radar Detectors

news.ycombinator.com Andrew P. Collins 2025-11-06 05:55:29

Get The Drive’s daily newsletter The latest car news, reviews, and features. Email address Sign Up Thank you! Terms of Service & Privacy Policy. Escort Radar, one of the big brands in the radar detection biz, has been under some scrutiny this year as customers and reviewers reported suboptimal performance on the $800 Redline 360c—Escort’s flagship. Today, it’s dropping a big firmware update to address those complaints. I’ve now had the chance to test this new firmware and speak with somebody at

Topics: detector escort radar redline speed
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This quantum radar could image buried objects

technologyreview.com Sophia Chen 2025-11-24 02:00:00

The glass cell that serves as the radar’s quantum component is full of cesium atoms kept at room temperature. The researchers use lasers to get each individual cesium atom to swell to nearly the size of a bacterium, about 10,000 times bigger than the usual size. Atoms in this bloated condition are called Rydberg atoms. When incoming radio waves hit Rydberg atoms, they disturb the distribution of electrons around their nuclei. Researchers can detect the disturbance by shining lasers on the atoms

Topics: atoms radar radio researchers rydberg
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Conversations remotely detected from cell phone vibrations, researchers report

news.ycombinator.com Unknown 2025-11-23 20:14:38

UNIVERSITY PARK, Pa. — An emerging form of surveillance, “wireless-tapping,” explores the possibility of remotely deciphering conversations from the tiny vibrations produced by a cell phone’s earpiece. With the goal of protecting users’ privacy from potential bad actors, a team of computer science researchers at Penn State demonstrated that transcriptions of phone calls can be generated from radar measurements taken up to three meters, or about 10 feet, from a phone. While accuracy remains limit

Topics: phone radar said speech vibrations
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India safely launches a $1.5 billion satellite for NASA

arstechnica.com Unknown 2025-12-14 08:18:10

After more than a decade of development, NASA's science leadership traveled to India this week for the launch of the world's most expensive Earth-observation satellite. The $1.5 billion synthetic aperture radar imaging satellite, a joint project between NASA and the Indian space agency ISRO, successfully launched into orbit on Wednesday aboard that nation's Geosynchronous Satellite Launch Vehicle, a medium-lift rocket. The mission, named NISAR (NASA-ISRO Synthetic Aperture Radar), was subseque

Topics: aperture nasa nisar radar satellite
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Aliens Can Detect Earth’s Airports From 200 Light-Years Away

gizmodo.com Ellyn Lapointe 2026-01-17 08:00:53

Humans might not know of any intelligent beings beyond Earth, but if they exist, they might already know about us. New research shows that radar systems at commercial and military airports are inadvertently announcing our presence to any aliens with the ability to listen. Preliminary results from a study led by Ramiro Caisse Saide, an astrophysics PhD candidate at the University of Manchester, suggest extraterrestrials up to 200 light-years away could theoretically detect electromagnetic signal

Topics: away light radar signals years
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Conspiracy Theories About the Texas Floods Lead to Death Threats

wired.com David Gilbert 2026-01-25 22:01:12

On Sunday afternoon, Michael Meyer, the founder of anti-government extremist group Veterans on Patrol, posted a warning on his Telegram channel. “Due to the recent weather weapon deployed against Texas, which resulted in a high number of child murders, efforts to eliminate this military treason are being escalated,” Meyer, who is commonly known as Lewis Arthur, wrote. Hours later, a man broke into an enclosure containing the NextGen Live Radar system operated by News 9 in Oklahoma City, damagi

Topics: meyer radar tells weather wired
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Cell Towers Can Double as Cheap Radar Systems for Ports and Harbors (2014)

news.ycombinator.com Ian Chant 2026-02-13 14:48:12

How do you see ships without a pricey radar system? The question has troubled seaports around the world as they work to improve security. Without radar installations, it can be hard for port employees to detect small ships like those employed by pirates or by the terrorists who attacked the USS Cole in 2000. A team of researchers in Germany can now offer security teams a new option, though: putting existing cellular towers to work as quick and dirty radar systems. Developed at the Fraunhofer In

Topics: cell objects pcl radar signals
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