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Sam's News — science — 2026-10-07

Scientific Achievement

9 Nobel Prize in Chemistry awarded for mirror-image molecule research

Henri B. Kagan, 95, and Kenso Soai, 76, won the 2026 Nobel Prize in Chemistry for asymmetric synthesis research enabling production of specific mirror-image molecules. Their work revolutionized pharmaceutical manufacturing, solving a century-old puzzle on how to produce single chiral forms rather than 50/50 mixtures.

  • Kagan's 1986 breakthrough: designing reactions to produce one chiral form over its mirror image
  • Soai created first chemical reaction producing only one mirror-image form (Soai reaction, demonstrated 2003)
  • Over half of clinically employed drugs are chiral molecules
  • Previously, chemists could only produce 'racemates' with equal mixtures of both mirror forms causing side effects or different therapeutic effects
  • Kagan (Université Paris-Sud, France) and Soai (Tokyo University of Science, Japan)
  • Prize citation: 'discovery of non-linear effects and autocatalysis in asymmetric organic synthesis'
  • Solves century-old puzzle of achieving homochirality synthetically
  • Kagan's 1986 key step; Soai's 1995 publication and 2003 demonstration of Soai reaction

Sources: STAT AI Web Searched, ABC News AI Web Searched, Sun Sentinel AI Web Searched, The New York Times RSS, STAT News RSS, Nobel Prize Official AI Web Searched

Paleontology

8 Animals May Have Originated 200 Million Years Earlier Than Previously Estimated

New research from Oxford published in Science Advances suggests animals evolved 800–700 million years ago, roughly 200 million years earlier than some estimates. The finding challenges assumptions based on fossil records, proposing soft-bodied animals existed during Neoproterozoic ice ages but left minimal fossils.

  • Animals may have evolved 800–700 million years ago (200 million years earlier than previous estimates)
  • Evolution possibly occurred before or during Snowball Earth
  • Study examined 140+ samples from Kheseen Biota (Mongolia); found no confident animal fossils despite exceptional preservation
  • Soft bodies rarely preserved in fossil record, explaining abrupt appearance near Cambrian Period (539–487 million years ago)

Sources: ScienceDaily AI Web Searched

Science

7 Scientists target senescent cells to combat aging

Researchers are developing strategies to rejuvenate immune cells that clear aging and dying cells, potentially combating age-related decline.

Sources: Live Science RSS

Climate

7 Amazon Wildfires Weaken Rainforest Carbon Uptake Through Ozone Pollution

Ozone pollution generated by Amazon wildfires is reducing the rainforest's capacity to absorb atmospheric carbon dioxide, representing an additional climate impact beyond direct carbon emissions from forest loss. The effect intensifies during extreme droughts.

  • Wildfire-generated ozone weakens surviving trees' carbon uptake ability
  • Effect particularly pronounced during extreme droughts
  • Represents climate impact mechanism beyond direct carbon release from combustion and forest loss

Sources: Inside Climate News AI Web Searched, Climate Council AI Web Searched, Phys.org RSS

Conservation

7 Oyster reefs could contribute $12 trillion annually to planetary health if better managed

A new study calculates that the world's oyster reefs have a gross ecosystem product of trillions annually but are severely underutilized.

Sources: Phys.org RSS

Evolutionary Biology

Research comparing 100 primate species suggests that everyday aggression and lethal violence evolved independently, not as part of the same behavioral spectrum.

Sources: ScienceDaily RSS

Health

6.5 New approach treats gum disease by disrupting bacterial communication

Scientists discovered that disrupting bacterial quorum sensing can shift dental plaque toward a healthier microbial balance without killing beneficial species.

Sources: ScienceDaily RSS, ScienceDaily — Health RSS

Public Health

6.5 Home improvements reduce childhood hospitalization risk by 30%

Children living in homes improved through the Healthy Homes Initiative were 30% less likely to be hospitalized in the subsequent five years.

Sources: Phys.org RSS

Agriculture

6.5 Biodegradable nanoparticles protect gibberellic acid for improved crop yields

Biodegradable nanoparticles stabilize the plant hormone gibberellic acid against heat and light degradation, enhancing agricultural performance.

Sources: Phys.org RSS

Policy

6.5 EU faces industry lobbying over proposed 'forever chemicals' PFAS ban

The European Union is under pressure to restrict or ban PFAS 'forever chemicals,' but industry groups are seeking exemptions.

Sources: Phys.org RSS