Science & Tech

Wide JWST Survey Finds Fewer Galaxies at z≈10, Bringing Counts Closer to Spectroscopy

A 36-sightline JWST NIRCam survey reports lower galaxy counts near redshift 10 than earlier photometric studies, aligning better with spectroscopic results.

#jwst, #astronomy, #galaxies, #cosmology

NASA ships Artemis III SLS core stage from Michoud to Kennedy for 2027 test mission

NASA rolled out the Artemis III SLS core stage from Michoud and loaded it on a barge bound for Kennedy for final assembly ahead of a 2027 test mission.

$BA, $LHX, #nasa, #artemis, #sls, #space

DESI completes five-year survey; will continue through 2028 to probe dark energy

The Dark Energy Spectroscopic Instrument finished its original five‑year survey, mapping 47M+ objects. DESI will continue through 2028 to test whether dark energy evolves.

#astronomy, #darkenergy, #cosmology, #desi

SPHEREx maps vast interstellar ices and carbon-rich dust across Cygnus X and North American Nebula

NASA’s SPHEREx produced large near-infrared spectral maps revealing water, CO2 and PAH distributions across star-forming regions like Cygnus X.

#astronomy, #spherex, #interstellarice, #milkyway

Astronomers Report Possible Direct Detection of Ionizing UV from Faint Galaxies at Redshift 6

A new arXiv preprint reports stacked detections of extreme‑UV photons from faint galaxies at z≈6, implying high escape fractions if confirmed.

#astronomy, #reionization, #astrosat, #hubble

Artemis II Crew Returns to Houston After 10-Day Lunar Flyby, Setting Distance Record

NASA’s Artemis II crew returned to Houston after a 10-day lunar flyby that made them the farthest humans from Earth and tested Orion and SLS systems.

#nasa, #artemis, #space, #moon

JWST data suggest powerful galactic wind 300 million years after the Big Bang

JWST spectra show extended CIII] around a z≈14 galaxy, implying strong, metal‑rich outflows moved gas 300 million years after the Big Bang.

#astronomy, #jwst, #galaxies, #cosmicdawn

Study: Cygnus X-3 Emits Petaelectronvolt Gamma Rays, Hinting at Galactic 'PeVatron'

LHAASO reports variable gamma rays up to petaelectronvolt energies from Cygnus X-3, suggesting the microquasar may be a Galactic PeVatron.

#astrophysics, #gammarays, #cosmicrays, #lhaaso, #cygnusx3

Preprint: Reinforcement-learning controller trained in surrogate flows cuts simulated wing drag in zero-shot tests

A preprint reports an RL controller trained in surrogate channel flows cuts simulated NACA4412 skin-friction ~29% and total drag ~11%; simulation-only, unreviewed.

#ai, #aerodynamics, #turbulence, #reinforcementlearning

Engineered miniature CRISPR achieves >80% editing in human cells and could fit inside AAV

Engineered miniature CRISPR raised editing in human cells from <10% to >80% and stays small enough to fit in AAV vectors — tests remain in cells.

#gene-editing, #crispr, #aav, #biotechnology

Engineered "Smart" Nanomaterial Reduces Intracellular MRSA in Mice and Piglets, Study Shows

Lab-made peptide–dendron nanoparticles reshape in response to bacterial enzymes and reduce intracellular MRSA in mice and piglets, a step toward smart antimicrobials.

#nanomedicine, #mrsa, #antibiotics, #ferroptosis

Study: dual‑target off‑the‑shelf CAR‑T cells resist rejection, curb tumor escape in mice

Nature Communications study finds donor 'off‑the‑shelf' CAR‑T cells targeting CD19 and CD70 persist longer and better control tumors in preclinical models.

$ALLO, #car-t, #immunotherapy, #allogeneic, #cd70

Engineered ‘living’ cell implant normalizes blood pressure in mice, study shows

Engineered human cell implants sense angiotensin II and secrete soluble ACE2 to restore normal blood pressure in hypertensive mice.

#syntheticbiology, #hypertension, #genetherapy, #ace2

Pol32 phosphorylation strengthens RPA binding and promotes mutagenic break‑induced replication in yeast

Study in budding yeast finds phosphorylation of two threonines in Pol32 strengthens its binding to RPA and promotes mutagenic break‑induced replication.

#dna-repair, #bir, #pol32, #yeast

23andMe study finds common gene variants modestly affect weight loss and nausea on GLP‑1 drugs

A Nature paper by 23andMe links common DNA variants to small differences in weight loss and nausea on GLP‑1 drugs; the company released a consumer report.

#genetics, #glp1, #23andme, #weightloss, #semaglutide