Detecting gamma rays with giant perovskite crystals

Gamma ray detection is challenging at the best of times.

The process of detecting gamma rays causes serious damage to those detectors. Researchers have developed a large, self-healing crystal that might help to solve this problem. Gamma rays are the highest energy members of the electromagnetic spectrum. They also have the smallest wavelength, which means that they are quite difficult to detect. A gamma ray […]

Readers ask about life on Venus and high-energy cosmic rays

October 10, 2020 cover

Venusian recollection Phosphine gas detected in the clouds of Venus could be a sign of life or some strange unknown chemistry, Lisa Grossman reported in “Possible sign of life is found on Venus” (SN: 10/10/20 & 10/24/20, p. 6). The story brought back memories for reader Bruce Hapke, a professor of planetary science at the […]

Evidence from cosmic rays show lift outpaces erosion

An international team, headed by members of the University of Bern, has shown for the first time that the Swiss Alps continue to rise. In the picture: Eiger Mönch and Jungfrau. Credit: Pixabay An international team of geologists, headed by members of the University of Bern, has shown for the first time that the Swiss […]

Adorable tardigrades fight UV rays with glowing shield

Scientists have discovered yet another reason to be impressed with tardigrades; some of these microscopic, nearly indestructible creatures wear a glowing “shield” that protects them from ultraviolet radiation.  Tubby tardigrades — also called moss piglets or water bears — are known for their toughness, able to withstand extreme heat, cold and pressure, as well as […]