Science

Roman Space Telescope Begins Three-Month Journey to Sun‑Earth L2 After Aug. 30 Launch

Launched Aug. 30, NASA’s Nancy Grace Roman Telescope is en route to Sun‑Earth L2 to map galaxies, probe dark energy and hunt exoplanets with a wide-field infrared camera.

#space, #nasa, #telescope, #astronomy, #roman

WMO: El Niño firmly established and likely to intensify into a very strong event through Feb. 2027

U.N. weather agency says El Niño is strongly established, likely to intensify and persist through Feb. 2027, raising risks of heatwaves, droughts and floods.

#elnino, #climate, #weather, #wmo

UNEP: World Likely to Cross 1.5°C in Next Few Years; Urges Rapid Cuts and Carbon Removal

UNEP warns the world is likely to cross 1.5°C within years and urges immediate, sustained emissions cuts, faster adaptation and carbon-dioxide removal.

#climatechange, #globalwarming, #unep, #parisagreement

SPT-3G produces high-precision CMB lensing map, sharpens neutrino-mass and structure-growth limits

SPT-3G releases a high signal-to-noise CMB lensing map from 2019–20 South Pole data, tightening structure-growth and neutrino-mass constraints.

#cmb, #cosmology, #spt3g, #neutrinos

Deeper X‑ray and JWST Data Cast Doubt on Claimed Black Hole in Galaxy UHZ1

Deep Chandra and JWST reanalysis finds no solid X‑ray or mid‑IR evidence that galaxy UHZ1 (z=10.05) hosts the luminous, obscured black hole claimed in 2023.

#astronomy, #black-holes, #jwst, #chandra

ArXiv preprint: DC electric field cools bosonic NaRb to quantum degeneracy and forms self-bound droplets

A Princeton-led arXiv preprint reports that a single static (dc) electric field cooled bosonic NaRb molecules to quantum degeneracy and produced self-bound droplets.

#physics, #ultracold, #molecules, #quantum

DESI DR1 Reanalysis Sets Neutrino Mass Limit That Appears to Disfavor Inverted Ordering

Independent reanalysis of DESI DR1 finds a 95% cosmological upper limit on summed neutrino mass that appears to disfavor the inverted hierarchy.

#neutrinos, #cosmology, #desi, #astrophysics

NASA Launches Nancy Grace Roman Space Telescope, Headed for L2 to Study Dark Energy and Exoplanets

NASA’s Nancy Grace Roman Space Telescope launched from Kennedy Space Center, starting a three-month cruise to Sun–Earth L2 to study dark energy, dark matter and exoplanets.

#nasa, #space, #telescope, #exoplanets, #darkenergy

Preprint reports >3σ evidence for w = −1 ‘phantom crossing’ in CPL dark‑energy fits

A UT Dallas preprint using an “optimal redshift” method finds CPL-model fits to current data show w = −1 crossing at >3σ for several dataset combinations.

#cosmology, #darkenergy, #astrophysics, #desi

Northwestern team realizes first one-positron quantum cyclotron, enabling sharper antimatter tests

Northwestern physicists trapped a single positron in a quantum cyclotron, demonstrating quantum control that could enable more precise CPT tests.

#physics, #antimatter, #quantum, #positron

NASA highlights studies linking Sun’s ancient behavior to Earth’s radiation and early warming

NASA summarizes two studies: heliosphere compressions that may have raised ancient radiation exposure, and young‑Sun protons that could form N2O and prebiotic molecules.

#space, #heliosphere, #climate, #prebioticchemistry

China Prepares to Launch Chang'e-7 to Probe Moon's Shadowed South Pole

China is preparing to launch Chang'e-7, a four-part mission aiming to probe permanently shadowed craters near the lunar south pole for water ice.

#china, #moon, #space, #lunar

Deep JWST spectrum of GN-z11 shows very massive stars and resolved Lyα at z=10.6

New JWST spectroscopy of GN‑z11 (z=10.6) finds signatures of very massive stars, strong winds and a redshifted Lyα wing that may let Lyα escape the early universe.

#astronomy, #jameswebb, #gnz11, #reionization

Preprint Finds EU Likely to Miss 2030 CO2 Benchmark; Transport Is Main Drag

A new arXiv preprint projects EU27 CO2 will fall by 2030 but still miss a CO2-only 2030 benchmark by ~620 Mt, with transport lagging.

#climate, #europe, #co2, #transport

Study: JUNO Could Detect Solar MSW Transition at >4σ Within 10 Years If Neutron-Tagging Works

Peer-reviewed study projects China’s JUNO detector could reach >4σ sensitivity to the solar MSW transition within 10 years if backgrounds are cut by neutron tagging.

#neutrinos, #juno, #msw, #astrophysics