Science & Tech

UCL Reanalysis Confirms 20 GeV Gamma‑Ray Halo Around Milky Way, but Stops Short of Dark‑Matter Claim

UCL reanalysis finds a persistent 20 GeV gamma‑ray halo in Fermi-LAT data around the Milky Way but cautions it's consistent with—not proof of—dark matter.

#astronomy, #darkmatter, #fermilat, #astrophysics

Claim of 1.7-Second Periodicity in Repeating FRB 20201124A Sparks Debate

A revised arXiv preprint reports a ~1.7-second period in repeating FRB 20201124A suggesting a spinning magnetar; independent reanalysis disputes the claim.

#frb, #magnetar, #astronomy, #astrophysics

First Peer-Reviewed In‑Situ Observations of Goblin Sharks Documented in the Pacific

A May 2026 paper reports the first peer‑reviewed video observations of live goblin sharks, extending their known range and depth in the Pacific.

#science, #ocean, #marinebiology, #deepsea

Neutron scattering reveals at least nine-partite entanglement in a strange metal

Neutron scattering on a centimeter-scale Ce3Pd20Si6 crystal yields quantum Fisher information indicating at least nine-partite entanglement tied to strange-metal behavior.

#quantum, #entanglement, #condensedmatter, #neutron_scattering

JWST detects hydrocarbons, aerosols and excess heat in atmosphere of white-dwarf planet WD 1856 b

Nature paper reports JWST transmission spectrum of WD 1856 b, revealing hydrocarbons, aerosols and unexpected warmth — the first atmospheric probe of a white-dwarf planet.

#jwst, #exoplanets, #white-dwarf, #astronomy

GWTC-5.0 population study finds structured black-hole masses and a rapidly spinning subpopulation

Analysis of 267 compact-binary mergers (GWTC-5.0) reveals peaks in black-hole masses and a rapidly spinning subpopulation consistent with hierarchical mergers.

#gravitational-wave, #black-holes, #ligo, #astrophysics

Commercial Robot Set to Launch to Reboost Aging Swift Space Telescope

A commercial robotic servicer will launch July 2 to rendezvous with and raise NASA’s Neil Gehrels Swift Observatory, averting possible reentry in 2026.

#nasa, #space, #orbitalservicing, #swift

TESS finds distant super-Jupiter via microlensing — its first planet discovery using the method

NASA’s TESS used gravitational microlensing to detect a distant super-Jupiter about 1.6 times Jupiter’s mass, nearly 40,000 light-years away — its first microlensing discovery.

#exoplanets, #tess, #microlensing, #nasa, #astronomy

Rubin Observatory Begins 10-Year Legacy Survey of Space and Time

NSF-DOE Vera C. Rubin Observatory launches full 10-year LSST operations, beginning nightly imaging and fast public alerts to map the changing sky.

#astronomy, #rubinobservatory, #lsst, #timedomain

Scientists digitally unroll and read surviving portion of Herculaneum papyrus PHerc. 1667

Researchers used X‑ray imaging and computational unwrapping to read a continuous 1.5m section of a Herculaneum scroll without opening it.

#herculaneum, #papyrology, #imaging, #virtualunwrapping

James Webb Finds Uranus’s Major Moons Carry Comet-like Water Signature

JWST finds Uranus’s five regular moons have comet-like deuterium-to-hydrogen ratios in their water ice, challenging models that mix large amounts of Uranian material.

#uranus, #jameswebb, #planetaryscience, #moons

AI Agents Reproduce and Extend CERN Analyses, Claim First AI-Produced Novel Result on LEP Data

Researchers using Anthropic’s Claude Code ran end-to-end collider analyses on public CERN data, releasing code and claiming an AI-produced novel Lund-plane result.

#ai, #particlephysics, #cern, #claudecode

Preprint Claims ~100 TeV Neutrinos From Milky Way’s Fermi Bubbles; Confirmation Pending

An arXiv preprint reports a >3σ correlation of ~100 TeV neutrinos with the Milky Way’s Fermi bubbles in public IceCube data; independent confirmation is needed.

#neutrinos, #astrophysics, #icecube, #fermi-bubbles

Study: Webb observes z=10.255 galaxy that may leak nearly all ionizing radiation

A Webb study finds a compact z=10.255 galaxy with almost no nebular lines, implying a very high Lyman-continuum escape fraction and possible impact on reionization.

#astronomy, #jameswebb, #reionization, #highredshift

Webb detects unusual isotopes in interstellar comet 3I/ATLAS, suggesting formation in an ancient cold environment

JWST spectra of interstellar comet 3I/ATLAS show very high deuterium and uncommon carbon ratios, pointing to formation in a cold, ancient, metal-poor region.

#interstellar, #comet, #jameswebb, #isotopes