Science

Credit: Marc-Olivier Beausoleil Using data on four species of Darwin’s finches on the Galápagos Islands, researchers led by McGill University have confirmed a long-standing hypothesis that species diversity evolves through adaptation to different resources. Evolutionary biologists have long suspected that the diversification of a single species into multiple descendent species—that is, an “adaptive radiation”—is the … Read more

Illustration of luminescence-based multi-point temperature determination inside an opaque packed bed loaded with 6 color-marked spheres coated with luminescent materials. Left, right: examples of simulated luminescence images when only a single sphere is presented at two different locations. Credit: Guangtao Xuan, Otto-von-Guericke-Universität Magdeburg A team of researchers has proposed an indirect optical method for determining … Read more

Credit: Markus Spiske from Pexels Under the Biden administration, there has been an effort to do a better job of measuring public and private environmental impacts. The federal government is trying to develop ways of improving the measurement of environmental costs and benefits of public investments and is also trying to stimulate the development of … Read more

Credit: Unsplash/CC0 Public Domain Scientists have completed the first comprehensive estimate of mountain lions in California, a vital statistic needed to shape puma-friendly land-use decisions and ensure that the predators can find room to roam, mate and find prey. The total number of mountain lions is estimated to be between 3,200 and 4,500, which is … Read more

Twist-PM for efficient SHG in the twisted rBN films with random thicknesses. (a) Schematics of a nonlinear optical crystal assembled by four pieces of the rBN films with different thicknesses of t1, t2, t3, t4, and a sequence of twist angles. (b) Twist-PM for efficient SHG. For the four rBN films with different thicknesses (800, 600, 400, … Read more

Credit: Pixabay/CC0 Public Domain NASA has onboarded another integral partner to its lunar plans by striking a deal with the United Arab Emirates to build part of its lunar Gateway space station and send one of the Arab country’s astronauts on a future Artemis mission. The deal with the Mohammed bin Rashid Space Center means … Read more

A person cleans his car from snow in Wajima in the Noto peninsula facing the Sea of Japan, northwest of Tokyo, Sunday, Jan. 7, 2024. Monday’s temblor decimated houses, twisted and scarred roads and scattered boats like toys in the waters, and prompted tsunami warnings. Credit: AP Photo/Hiro Komae Rescue teams worked through snow to … Read more