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Nearby Supernovae Linked to Two Ancient Mass Extinctions on Earth

New research suggests supernova explosions may have caused ozone depletion, driving extinction events in the Ordovician and Devonian periods.

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Nearby Supernovae Linked to Two Ancient Mass Extinction Events

200-Million-Year-Old Dinosaur Footprints Discovered at Australian High School

Scotland's Earliest Dinosaur Fossil Unearthed After 50 Years

230-Million-Year-Old Dinosaur Fossil Redefines Early Evolution Timeline

Study Finds Massive Eocene Asteroid Impacts Had No Long-Term Climate Effects

First Antarctic Amber Discovery Reveals Ancient Rainforest

New Evidence Confirms 'Snowball Earth' Reached Equatorial Regions

New Study Reveals Cold, Not Heat, Caused End-Triassic Mass Extinction

First Dinosaur Fossils Unearthed in Hong Kong's Port Island

Earliest Evidence of Coral-Algae Symbiosis Discovered in 385-Million-Year-Old Fossils

Ancient Seafloor Discovered Deep Beneath Pacific Ocean

New Study Reveals Earth's Temperature Fluctuations Over 485 Million Years

Mega El Niño Events Linked to Earth's Greatest Mass Extinction

Mega El Niños Linked to Earth's Largest Mass Extinction

Matching Dinosaur Footprints Across Continents Reveal Ancient Superhighway

Ancient Land-Sea Dynamics Triggered Marine Mass Extinctions

Identical Dinosaur Footprints Discovered Across Continents

Matching Dinosaur Footprints Discovered on Separate Continents

New Study Traces Dinosaur-Killing Asteroid's Origin to Outer Solar System

Ancient Rocks in Scotland and Ireland Reveal Earth's Deep Freeze Era

Greenland Fossils Reveal Ice Sheet's Fragility and Potential Sea-Level Rise

Newly Discovered Tiny Ape Species Coexisted with Larger Hominid in Prehistoric Europe

Freshwater Cycle on Earth Began 4 Billion Years Ago, New Study Reveals

Ancient Human Jawbone Found in Residential Floor Tile