184 articles from TUESDAY 13.2.2024

A century of reforestation helped keep the eastern US cool

Widespread 20th-century reforestation in the eastern United States helped counter rising temperatures due to climate change, according to new research. The authors highlight the potential of forests as regional climate adaptation tools, which are needed along with a decrease in carbon emissions.

Juno photographs billowing volcanic plumes on Io

NASA’s Juno mission captured a marvelous image of volcanic activity during its second flyby of Jupiter’s moon Io on Feb. 3. The spacecraft snapped the image of two plumes with its visible-light camera JunoCam as it skimmed 2,400 miles (3,800 km) above Io’s surface. The trails may be from one giant volcano or two smallerContinue reading "Juno photographs billowing volcanic plumes...

Image: Spiral galaxy NGC 4254's dazzling swirls

NGC 4254, a spiral galaxy, is resplendent in orange and blue in this Jan. 29, 2024, image from the James Webb Space Telescope. This is one of 19 nearby spiral galaxies recently imaged by the telescope as part of the long-standing Physics at High Angular resolution in Nearby GalaxieS (PHANGS) program supported by more than 150 astronomers worldwide.

Secrets of night parrot unlocked after first genome sequenced

Researchers at CSIRO, Australia's national science agency, have sequenced the first genome of the night parrot, one of the world's rarest and most elusive birds. The development will answer questions about population genetics and biology that could boost conservation hopes for the recently rediscovered species.

New research reveals mechanisms of stiffening in paper pulp, could lead to improved recyclability

One of the problems with paper recycling is that the fibers stiffen during the dewatering and drying processes, also known as hornification. The same thing happens to dishcloths, for example; they stiffen over time. New research can now explain the mechanisms of hornification, knowledge that will enable us to recycle paper fibers many more times compared to the current limit of between five and...

Discovery of unexpected ultramassive galaxies may not rewrite cosmology, but still leaves questions

Ever since the James Webb Space Telescope (JWST) captured its first glimpse of the early universe, astronomers have been surprised by the presence of what appear to be more "ultramassive" galaxies than expected. Based on the most widely accepted cosmological model, they should not have been able to evolve until much later in the history of the universe, spurring claims that the model needs to be...

Microplastics in soils: First consistent risk assessment

Microplastics in soil are extremely diverse and complex. This makes it difficult to determine the risks of plastic pollution to soil life, which is an increasing concern among policymakers and scientists. Researchers from the Spanish Institute IMDEA Water and Wageningen University & Research now offer the first ecological risk assessment indicating that risks are to be expected.

Vera Rubin's keen eye on our solar system will inspire future missions

When the interstellar object (ISO) 'Oumuamua appeared in our solar system in 2017, it generated a ton of interest. The urge to learn more about it was fierce, but unfortunately, there was no way to really do so. It came and went, and we were left to ponder what it was made of and where it came from. Then, in 2019, the ISO comet Borisov came for a brief visit, and again, we were left to wonder...