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Sam's News — science — 2026-09-20

Space Exploration

8 NASA's Roman Space Telescope completes first successful test imaging with 300-megapixel camera

NASA's Nancy Grace Roman Space Telescope captured its inaugural test images using its 300-megapixel camera, with the agency already considering extending the mission's planned lifespan.

Sources: Live Science RSS

Climate

8 Satellites measure 12.5 trillion tons of ice lost from Greenland and Antarctica since 1979

Satellite data spanning 1979–2026 shows Greenland and Antarctica lost 12.5 trillion tons of ice, raising sea levels by 3.1 cm, with annual loss accelerating from 40 billion tons (1979–1990) to sixfold higher rates in Antarctica recently. Ocean warming drives approximately five-sixths of the loss via basal melting rather than atmospheric warming alone.

  • 12.5 trillion tons of ice lost from Greenland and Antarctica (1979–2026)
  • Annual ice loss increased from ~40 billion tons (1979–1990) to much higher rates
  • Antarctic ice loss increased sixfold in recent decades
  • Cumulative loss raised global sea levels by 3.1 cm
  • ~5/6 of ice loss driven by warm oceanic currents, not atmospheric warming
  • Jakobshavn glacier retreated at rates up to 50 meters per day
  • Sharp acceleration evident from 2010s onward; early 1990s relatively stable

Sources: Streamline AI Web Searched, Pravda.Ru AI Web Searched, Phys.org RSS

Science

7.5 Decade-Long NIST Experiment Deepens Gravitational Constant Mystery

A 10-year sealed NIST experiment measuring the universal gravitational constant produced a result that diverges unexpectedly from another leading measurement, widening a 225-year physics puzzle. The discrepancy is roughly one part in 10,000—larger than ordinary experimental uncertainty.

  • NIST decade-long experiment on gravitational constant (big G)
  • Result sealed for 10 years to prevent bias before opening
  • Diverges from another leading measurement
  • Discrepancy ~1 part in 10,000—larger than expected uncertainty
  • Gravity remains less precisely known than other fundamental constants
  • Persistent mismatch suggests undetected errors or deeper physics

Sources: ScienceDaily / National Institute of Standards and Technology (NIST) AI Web Searched, ScienceDaily RSS

7 Ancient DNA reveals plague's 400-year recurrence in Europe after the Black Death

Genetic analysis of 26 Yersinia pestis genomes from 11 archaeological sites across Estonia, Russia, England, the Netherlands, and Switzerland revealed plague repeatedly returned to Europe over 400 years following the Black Death. A major genetic expansion and branching into three lineages occurred around 1450–1500, likely influenced by the Great Renaissance Drought.

  • 26 ancient plague genomes reconstructed from 14th–18th centuries
  • Samples from 11 sites across Estonia, Russia, England, Netherlands, and Switzerland
  • Plague repeatedly resurfaced over 400+ years after Black Death (1347–1353)
  • Major genetic expansion into three lineages around 1450–1500
  • Estonia experienced repeated introductions beginning late 14th century
  • Plague spread via trade, migration, and war

Sources: ScienceDaily AI Web Searched, ScienceDaily — Health RSS

6.5 Breakthrough in 2,000-Year-Old Dead Sea Scrolls Mystery

Researchers propose that the Qumran sect did indeed use its distinctive 364-day calendar, solving a long-standing scholarly debate.

Sources: ScienceDaily RSS

Physics

7.5 Quantum entanglement confirmed in Z bosons at CERN's Large Hadron Collider

Physicists at CERN's Large Hadron Collider detected strong evidence that Z boson pairs undergo quantum entanglement during Higgs boson decays at collision energies of thirteen trillion electron volts. This confirms Einstein's "spooky action at a distance" under extreme laboratory conditions and represents one of the highest-energy confirmations of entanglement ever achieved.

  • Quantum entanglement confirmed in Z bosons at CERN's ATLAS experiment
  • Study examined Higgs boson decays into Z boson pairs
  • Collision energies reached 13 trillion electron volts
  • Protons traveled at 99.99% speed of light
  • Finding published in Physical Review Letters
  • Highest-energy confirmation of entanglement involving shortest-lived particles

Sources: ScienceDaily / University of Oxford AI Web Searched, ScienceDaily RSS

Weather Prediction

7 Hurricane Hunters identify four warning signs of tropical cyclone intensification

Scientists at the University of Miami and NOAA identified four warning signs indicating when a tilted tropical cyclone is becoming primed to strengthen, based on nearly three decades of Hurricane Hunter observations. The findings could enable forecasters to give coastal communities additional lead time for evacuation decisions.

  • Nearly three decades of NOAA Hurricane Hunter data analyzed
  • Four characteristics: compact tightly organized circulation, favorable tilt relative to wind shear, stronger rising air and rainfall near lower center, warm water with abundant moisture and weak middle-level winds
  • Tropical cyclones must become vertically organized before substantial intensification
  • Strong upper-level winds prevent strengthening until circulation centers realign

Sources: ScienceDaily / University of Miami Rosenstiel School AI Web Searched, ScienceDaily RSS

Paleontology

7 Fossilized T. rex tooth reveals dinosaur was warm-blooded like humans

Chemical analysis of a 66-million-year-old T. rex tooth shows the dinosaur maintained a body temperature around 97 degrees Fahrenheit, nearly matching humans.

Sources: ScienceDaily RSS

Biotech

7 AI-generated 4D digital twins of cells could accelerate drug discovery

UC San Diego researchers developed AI-generated 4D digital models of cells using deep learning and physics-based simulation to predict drug responses without extensive lab testing. The approach targets cancer, diabetes, Alzheimer's, and pediatric mitochondrial disorders.

  • MitoSpace AI model trained on 40,000 4D movies of cancer cells with 25 compounds
  • AI grouped cells by drug response without prior knowledge of treatments
  • Physics-based digital twin approach defines behavioral rules for organelles
  • Research published in Cell, September 17, 2026

Sources: UC San Diego Health Sciences AI Web Searched, Phys.org RSS

Environmental Science

6.5 Pittsburgh bacteria evolved to survive and consume industrial pollution

Bacteria at a former steel site in Pittsburgh have evolved the ability to survive and degrade industrial pollutants.

Sources: Phys.org RSS