Genomics reveals sled dogs’ Siberian lineage

Genomics reveals sled dogs’ Siberian lineage

Credit: Pixabay/CC0 Public Domain New research co-led by Cornell University examines thousands of years of Arctic sled dog ancestry and reveals when and how Siberian and Alaskan sled dogs’ DNA mixed. “There was a real concern from Siberian breeders—who were mostly racing their dogs—that they were sending out their dogs’ DNA samples for analysis, more … Read more

Stephen Hawking Was Wrong—Extremal Black Holes Are Possible

Stephen Hawking Was Wrong—Extremal Black Holes Are Possible

Now two mathematicians have proved Hawking and his colleagues wrong. The new work—contained in a pair of recent papers by Christoph Kehle of the Massachusetts Institute of Technology and Ryan Unger of Stanford University and the University of California, Berkeley—demonstrates that there is nothing in our known laws of physics to prevent the formation of an extremal black hole. Their mathematical proof … Read more

Social messaging in soap operas can prevent violence and intergroup conflict

Social messaging in soap operas can prevent violence and intergroup conflict

Credit: CC0 Public Domain Soap operas are known for outrageous schemes and scandalous affairs, but an NYU researcher finds that they can also serve as effective interventions for preventing intergroup violence in conflict-ridden areas by shaping social norms, promoting understanding of different perspectives, and encouraging people to create change. In an analysis of research on … Read more

Tech billionaire returns to Earth after first private spacewalk

Tech billionaire returns to Earth after first private spacewalk

This image made from SpaceX video shows its capsule, center, carrying tech entrepreneur Jared Isaacman with his crew after it reached the Gulf of Mexico near Florida’s Dry Tortugas early Sunday, Sept. 15, 2024. Credit: SpaceX via AP A billionaire spacewalker returned to Earth with his crew on Sunday, ending a five-day trip that lifted … Read more

Artemis missions could put the most powerful imaging telescope on the moon

Artemis missions could put the most powerful imaging telescope on the moon

Simulations depicting the potential solar physics science that the Artemis-enabled Stellar Imager (AeSI) on the moon could accomplish. Credit: Rau et al. (2024) Ground-based interferometry on Earth has proven to be a successful method for conducting science by combining light from several telescopes into acting like a single large telescope. But how can an ultraviolet … Read more

Calls for greater support for working women battling chronic pain

Calls for greater support for working women battling chronic pain

Credit: Unsplash/CC0 Public Domain Women living with chronic pain face medical gender bias and high levels of discrimination in the workplace, according to new research highlighted in a joint submission by the University of Melbourne and Western Sydney University to the Victorian Inquiry into Women’s Pain. Between 2023 and 2024, University of Melbourne and Western … Read more

Astronomers discover new planet in Great Bear constellation

Astronomers discover new planet in Great Bear constellation

Artist’s vision of a cold super-Jupiter in the HD 118203 system. It is an extremely massive gas planet orbiting its star in an orbit six times that of Earth. Astronomers believe it has very low temperatures. Credit: UMK Astronomers from the Nicolaus Copernicus University in Torun have discovered a new planet in the constellation of … Read more

Trees in tropical logged forests release carbon at greater rate despite faster growth, study finds

Trees in tropical logged forests release carbon at greater rate despite faster growth, study finds

Old-growth tropical forest at Maliau Basin Conservation Area in Sabah, Malaysian Borneo. Credit: Maria Mills. Tree stems in tropical forests recovering from logging produce carbon dioxide at a greater rate than those in unlogged forests, according to a new study from the University of Leicester. With fewer surrounding trees to compete with, the tree stems … Read more

NASA’s SpaceX Crew-9 to conduct space station research

NASA’s SpaceX Crew-9 to conduct space station research

Scanning electron-microscopy image of human platelets prior to launch to the International Space Station. Credit: University of Utah/Megakaryocytes PI Team NASA astronaut Nick Hague and Roscosmos cosmonaut Aleksandr Gorbunov are headed to the International Space Station for the agency’s SpaceX Crew-9 mission in September. Once on station, these crew members will support scientific investigations that … Read more

Researchers simulate novel metal-filtered VCSEL modal control

Researchers simulate novel metal-filtered VCSEL modal control

Structure of MMF-VCSEL. Credit: Sensors (2024). DOI: 10.3390/s24144700 A study led by researchers from the Changchun Institute of Optics, Fine Mechanics and Physics of the Chinese Academy of Sciences revealed a novel metal-dielectric film mode filter structure that can flexibly regulate transverse modes in vertical-cavity surface-emitting lasers (VCSELs), which demonstrates the potential of metal apertures … Read more