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Category: space

Puzzling ultraviolet radiation in the birthplaces of stars

Researchers used the MIRI instrument onboard the James Webb Space Telescope (JWST) to identify the presence of ultraviolet radiation in five young stars in the Ophiuchus region, and to understand its role in the formation of stars. The discovery of UV radiation around these protostars and its significant impact on the surrounding material is a challenge to models describing the formation of stars.

The paper is published in Astronomy & Astrophysics, and the research team included Iason Skretas, a doctoral student at MPIfR, and Dr. Agata Karska (Center for Modern Inter-disciplinary Technologies at Nicolaus Copernicus University in Torun, Poland, and Max Planck Institute of Radio Astronomy (MPIfR), Bonn, Germany).

Musicians drift less in blindfolded walk: Could musical training be utilized in cognitive rehabilitation?

A multi-institutional team of researchers led by Université de Montréal report that extensive musical training can steady the body in space, both with and without guiding sounds, during a blindfolded stepping test.

Spatial cognition is at the heart of everyday movement, linking mental maps of the environment with the body’s position and orientation. Spatial abilities support tasks such as mental rotation, navigation, walking through space, and maintaining spatial information in working memory, all of which depend on a stable sense of where the body is located.

Body representation provides a solution to what some researchers describe as the computational “where” problem of the body, knitting together inputs from vision, touch, and the vestibular system. Auditory cues join this network as well, supplying information that can help stabilize posture and guide movement when other senses are limited or absent, as described in prior work on postural control and ambulation.

Physicists Observe a Nuclear “Memory” Thought Impossible

UT researchers have made rare measurements of exotic nuclear decay that reshape how scientists think heavy elements form in extreme cosmic events.

You can’t have gold without the decay of an atomic nucleus, yet the details behind that transformation have long been difficult to confirm. Researchers in nuclear physics at UT have now reported three key findings in a single study that clarify important parts of this process. Their work offers new guidance for developing models that explain how stars create heavy elements and may improve predictions about the behavior of exotic, short-lived nuclei found across the universe.

The Physics of Bling.

Breakthrough Simulation Maps Every Star in The Milky Way in Scientific First

The Milky Way contains more than 100 billion stars, each following its own evolutionary path through birth, life, and sometimes violent death.

For decades, astrophysicists have dreamed of creating a complete simulation of our galaxy, a digital twin that could test theories about how galaxies form and evolve. That dream has always crashed against an impossible computational wall.

Until now.

Rubin Observatory peers into the ‘hidden universe’ and discovers stream of stars longer than our entire Milky Way

“We are expecting that when Rubin obtains very deep imaging of galaxies, we will see them surrounded by a faint network of stellar streams,” Romanowsky concluded. “The discovery of the stream shows the excellent characteristics of Rubin for making such observations, and points to a rich future of similar discoveries as vast areas of the sky are mapped out.”

The team’s research is available on the paper repository site arXiv.

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