microwave

Just like any other organisms, crop-destroying soil microbes die if they get too hot. With that fact in mind, scientists have developed a new system in which soil-heating microwaves are used to kill such pests. It could one day replace pesticides.

Using microwave instruments to peer deep beneath the surface of the far side of the Moon, researchers have detected a ‘hotspot’ they say is a large subsurface granite mass, suggesting the Moon is more "Earth-like" than we thought.

Drones are becoming a mainstay in modern warfare. Now, the Air Force Research Laboratory (AFRL) has countered the emerging threat of drone swarms, using the Tactical High-power Operational Responder (THOR) to take out multiple targets.

Water on the Moon isn't kept in convenient reservoirs, it’s locked away in the lunar soil. Now, a team of scientists has found that thirsty astronauts could one day refresh themselves fairly easily – by throwing a cup of Moon dirt in the microwave.

Solar cells are good for the environment, but they have downsides. They’re expensive to make, and there are limited ways to recycle them. But researchers have developed a new manufacturing technique that may address both of these issues.

In what it describes as the most significant demonstration of its kind in half a century, the US Naval Research Laboratory (NRL) beamed 1.6 kW of power over a kilometer (3,280 ft) using a microwave beam at the US Army Research Field in Maryland.

The secrets of the mysterious EmDrive thruster – which stumped both NASA and Chinese research teams by delivering measurable thrust without a propellant – have finally been unlocked. The thrust comes from ... drum roll ... repeated experimental error.

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.

Researchers have, for the first time, used a semiconductor laser​ to send and receive radio signals. The hybrid electronic-photonic device uses a laser to extract and transmit microwave signals, providing a data rate that may one day lead to ultra-high-speed Wi-Fi.

Here on Earth, 80 years of advertising has told us that diamonds are special, but our shiny stones have nothing on the weird and wonderful forms seen out in space. Now, astronomers have found that mysterious microwave signals around stars could be caused by swirling clouds of diamond dust.

Several experiments have shown that the EMDrive can generate thrust from basically nothing – in apparent violation of Newton’s Laws of Motion. Unfortunately, a German team has now built and tested their own EMDrive, and found that environmental factors may have been responsible for false positives.

Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) observatory in Chile have imaged a very active black hole at the center of spiral galaxy M77, which is apparently feasting on the universe’s largest donut.