Webb Reveals Colors of Earendel, most Distant Star ever Detected

A black background is scattered with hundreds of small galaxies of different shapes, ranging in color from white to yellow to red. Just a bit above the center, there is a bright source of light, a star, with 8 bright diffraction spikes extending out.
This image from NASA’s James Webb Space Telescope of a massive galaxy cluster called WHL0137-08 contains the most strongly magnified galaxy known in the universe’s first billion years: the Sunrise Arc, and within that galaxy, the most distant star ever detected. In this image, the Sunrise Arc appears as a red streak just below the diffraction spike at the 5 o’clock position.
Credits: Image: NASA, ESA, CSA, D. Coe (STScI/AURA for ESA; Johns Hopkins University), B. Welch (NASA’s Goddard Space Flight Center; University of Maryland, College Park). Image processing: Z. Levay.

NASA’s James Webb Space Telescope has followed up on observations by the Hubble Space Telescope of the farthest star ever detected in the very distant universe, within the first billion years after the big bang...

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Tropical Plant Native to China Reveals Antiobesity Potential

Dried Mallotus furetianus leaves

Mallotus furetianus, a tropical plant of the Euphorbiaceae family, native to Hainan Island, China.

Credit: Akiko Kojima, Osaka Metropolitan University

Scientists discover that Mallotus furetianus, native to Hainan Island, China, has antiobesity effects. Scientists tested the antiobesity effects of Mallotus furetianus extract native to Hainan Island, China, using obesity model mice. As a result, body weight and adipose tissue weight of obesity model mice were significantly reduced by the intake of Mallotus furetianus extract. Fatty liver was suppressed and adipocyte size reduction in adipose tissue was observed...

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Self-supervised AI Learns Physics to Reconstruct Microscopic Images from Holograms

GedankenNet 2
Ozcan Research Lab/UCLA
Images showing the training and testing of UCLA-developed AI-powered GedankenNet using simulated holograms generated from random images in reconstructing microscopic images of various human tissue sections and Pap smears. Scale bar: 50 μm (millionth of a meter)

Advance uses thought experiments, instead of real data, to expedite learning. Researchers from the UCLA Samueli School of Engineering have unveiled an artificial intelligence-based model for computational imaging and microscopy without training with experimental objects or real data.

In a recent paper published in Nature Machine Intelligence, UCLA’s Volgenau Professor for Engineering Innovation Aydogan Ozcan and his research team introduced a self-supervised AI model nicknamed GedankenNet that learns f...

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Hubble Glimpses Globular Cluster NGC 6652

A spherical cluster of stars with a bright core, and stars spread out to the edges gradually giving way to an empty, dark background. A few stars with cross-shaped diffraction spikes appear larger and stand out in front.
Text credit: European Space Agency (ESA)
Image credit: ESA/Hubble & NASA, A. Sarajedini, G. Piotto

The glittering, glitzy contents of the globular cluster NGC 6652 sparkle in this star-studded image from the NASA/ESA Hubble Space Telescope. The core of the cluster is suffused with the pale blue light of countless stars, and a handful of particularly bright foreground stars are adorned with crisscrossing diffraction spikes. NGC 6652 lies in our own Milky Way galaxy in the constellation Sagittarius, just under 30,000 light-years from Earth and only 6,500 light-years from the galactic center.

Globular clusters are stable, tightly gravitationally bound clusters containing anywhere from tens of thousands to millions of stars...

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