Peering into the Milky Way’s far side, Roman could unveil 100,000 worlds

Galactic Neighborhoods infographic
This infographic features artist’s concept views of our Milky Way galaxy: face-on at the left and edge-on at the right. It highlights different galactic environments that could influence the development of planets and potentially life. The center of the galaxy is rich in the elements that form planets (like silicon, oxygen, and magnesium), which are forged by multiple generations of stars and supernova explosions. Planets there may be more common or larger, but they would also be flooded with radiation from densely packed stars (including massive ones that emit enormous amounts of high-energy ultraviolet light and X-rays). In the outskirts of the galaxy, where stars are much more spread out, radiation is far milder but there are also smaller amounts of planet-building materials...
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CAR T moves beyond cancer, targeting autoimmune disease with immune system reset

A revolutionary cancer treatment could transform autoimmune disease
Jan Janisch-Hanzlik received an infusion of CAR T cells on June 9, 2025, at the University of Nebraska Medical Center in Omaha. Credit: Nebraska Medicine

At age 49, Jan Janisch-Hanzlik’s multiple sclerosis was destroying her freedom to live the life she wanted. She gave up her active nursing job for a desk role. Frequent falls made her afraid to carry her grandchildren. She had to move to a bigger house to make room for the wheelchair she feared she might end up needing full-time.

Even the best available medication wasn’t improving Janisch-Hanzlik’s symptoms, and she worried they’d only get worse...

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Optical device uses humidity to unlock hidden information and offers new option for data storage

Optical device uses humidity to unlock hidden information, offers new option for data storage
Illustration of the optical device with the bottom layer of antimony trisulfide and top layer of azido-grafted carboxymethyl cellulose. The UCSD Tritons logo appears at low humidity levels, while the UCSD library logo appears at high humidity levels. Credit: University of California – San Diego

Engineers at the University of California San Diego have developed an optical device that reveals hidden images and changes colors in response to different levels of humidity. The technology, published in Light: Science & Applications, could lead to the development of new anti-counterfeiting labels, secure data storage, interactive displays, and environmental sensors.

The device works by displaying different images depending on moisture levels in the air...

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NASA’s Fermi telescope reveals the power source behind monster supernovae

Composite showing optical and gamma-ray observations of SN 2017egm
This composite image shows two views of SN 2017egm, in visible light (inset) and gamma rays (background). The optical image shows the supernova — the brightest object in the scene — and its host galaxy on July 1, 2017. The background map shows a wide area of the sky surrounding the supernova’s position. Brighter colors indicate greater statistical likelihood that gamma rays are associated with the explosion. The map includes gamma rays detected by Fermi’s Large Area Telescope from July 5, 2017, to Oct. 25, 2017, or from 43 to 155 days after the supernova was discovered.
Background, NASA/DOE/Fermi LAT Collaboration and Acero et. al. 2026; inset, NOT+ALFSOC/Bose et al. 2020

NASA’s Fermi telescope has detected what may be the first confirmed gamma-ray signal from a superluminous su...

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