Radar

Many cars are now equipped with pedestrian-detecting radar systems, but those systems can still be blocked by obstacles such as buildings or other vehicles. A new setup is intended to get around that problem, by taking the radar to the streets.

Astronomers have captured stunning new high-resolution radar images of the Moon, using an experimental instrument on a ground telescope. This proof of concept test paves the way for a more powerful radar telescope that could see as far as Neptune.

Home to oceans of liquid methane, Saturn’s moon Titan is one of the most fascinating bodies in the solar system. Now scientists have used radar to probe the depth of its largest sea, Kraken Mare, and estimated it to be at least 300 m deep.

Ordinarily, if you want to know how soil properties change at different depths, you have to extract soil core samples. Scientists have now determined that the same data can be obtained much more easily, using ground-penetrating radar.

Israeli company Vayyar says it can replace a bunch of car interior sensors with a single, hidden "4D radar" unit the size of a credit card, saving significant development costs while unlocking a range of upcoming safety features.

Self-driving cars typically use both LiDAR and radar to detect obstacles on the road ahead, yet neither system is adept at identifying vehicles through fog. Now, though, engineers have discovered that radar is good at the task if it's "doubled up."

By analyzing data from radar and optical telescopes, scientists have given radar the ability to make observations of meteors that burn up in the Earth's atmosphere that have previously only possible using optical telescopes.

No one likes the idea of biting into a cookie (or other food item) and finding a piece of glass, wood or plastic inside. An experimental new system is designed to keep that from happening, utilizing radar technology.

While today's cars are getting increasingly good at detecting other vehicles on the road ahead, they can still be surprised by traffic that shoots out from intersecting streets. A new radar system may help, by letting cars "see" around blind corners.

Five years ago Garmin first introduced its Varia Radar system, which warns cyclists of cars approaching from behind. The company has now announced an updated version, that offers a couple of key improvements over the original.

Scientists have mapped an entire buried ancient Roman city known as Falerii Novi using radar technology. The researchers unraveled the secrets of the city 30.5 hectare Italian city by riding over its remains in a quad bike towing a radar instrument.

Physicists have harnessed the weird world of quantum physics to develop a “quantum radar” prototype. The system uses the quantum entanglement phenomenon to detect objects, and it could eventually outperform conventional radar in some circumstances.