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Sam's News — science — 2026-08-31

Space

8.5 NASA's Roman Space Telescope launches on million-mile journey to study dark matter and dark energy

NASA launched the Roman Space Telescope, a powerful observatory repurposed from a defense satellite for astronomical research.

Sources: Science Daily RSS, ScienceDaily RSS, Qazinform RSS, The Jerusalem Post RSS, Aviation Week RSS Update to: NASA prepares to launch Nancy Grace Roman Space Telescope

7.5 JWST identifies distant supernova from universe's early epoch

The James Webb Space Telescope has confirmed one of the most distant Type II supernovae ever observed, exploding when the universe was only 2 billion years old.

Sources: Phys.org RSS

Science

7.5 Scientists Create Sound-Powered Micro-Robots

Researchers have developed tiny robots that fly, float and maneuver using only acoustic waves without motors.

Sources: Live Science RSS

7.5 Nepal-Tibet disaster linked to climate change; glaciologist explains ice avalanche trigger

A massive ice avalanche from a collapsing glacier triggered the catastrophic floods on the Nepal-Tibet border, linked to climate change.

Sources: Phys.org RSS Update to: Nepal glacier collapse triggered devastating floods amid climate change concerns

Astrophysics

7.5 Simulations suggest rocky planets could have formed within 100 million years after the Big Bang

University of Portsmouth simulations suggest rocky planets could have formed as early as 100 million years after the Big Bang—billions of years earlier than previously thought. Population III supernovae ejected heavy elements and water into gas clouds that collapsed into rotating disks around young stars, providing sufficient material for Earth-mass planetary formation and water acquisition.

  • Rocky planets may have formed 100 million years after Big Bang
  • Population III supernovae ejected over 100× Sun's mass of heavy elements
  • Simulated disk contained water at levels comparable to early Solar System
  • Young star in simulation ~70% Sun's mass with Earth-like planetary zone
  • Universe ~13.8 billion years old; 100 million years before first galaxies emerged

Sources: ScienceDaily AI Web Searched

Mathematics

7.5 'Stunning' percolation proof resolves decades-old phase transition puzzle

Five mathematicians proved a decades-old conjecture in percolation theory about phase transitions in networks, demonstrating how networks abruptly shift behavior past a critical point. The breakthrough applies to broad network classes and resolves fundamental questions about fluid flow rates in percolation systems.

  • Proof developed by researchers at ETH Zurich in December 2025
  • Addresses phase transition behavior in network percolation
  • Applies to broad class of networks
  • Percolation theory models fluid seepage, virus spread, gas filtration, and wildfire propagation

Sources: Quanta Magazine AI Web Searched, Hacker News (front page) RSS

Natural Disaster

7.5 Cascading disasters in Nepal flood: ice-rock avalanche, debris dam, and burst lake (August 2026)

Nepal's catastrophic August 2026 flood, which killed hundreds, was triggered by ice and rock falling into a river, followed by a debris-dammed lake breakthrough days later.

Sources: Phys.org RSS Update to: Nepal glacier collapse triggered devastating floods amid climate change concerns

Conservation

7.5 10,000-year radiocarbon reconstruction reveals human-driven fire shaped Amazonian forest

A comprehensive analysis of 1,361 radiocarbon dates across 303 sites shows that fire in the Amazon rainforest has been almost exclusively human-driven for over 10,000 years.

Sources: Phys.org RSS

Health

Yale researchers found that air conditioning usage prevents approximately half of heat-related deaths in the United States, saving more than 5,000 lives annually.

Sources: Phys.org RSS

Astronomy

7.5 James Webb Space Telescope identifies multiple massive black hole mergers in early universe from 12.5 billion years ago

Researchers analyzing JWST infrared imagery have discovered multiple supermassive black holes from approximately 12.5–12.8 billion years ago that were actively accreting matter and merging.

Sources: Phys.org RSS