Not by asteroid alone: Rethinking the Cretaceous mass extinction
Decoding early Martian weather: Analyzing carbonate minerals in meteorite Allan Hills 84001
Moon geology could solve three mysteries of early Earth
'Calm before storm' may foreshadow climatic tipping point
Geologists Provide New Evidence for Reason Behind Rise of Life in Cambrian Period
Geologists have uncovered evidence in the oil fields of Oman that explains how Earth could suddenly have changed 540 million years ago to favor the evolution of the single-celled life forms to the multicellular forms we know ...
Researchers find new information about Earth's origins
Two Dartmouth researchers have learned more about the origins and makeup of the solar nebula, the large gaseous cloud thought to have spawned the solar system. Mukul Sharma, assistant professor of Earth sciences, ...
Planet Earth may have 'tilted' to keep its balance
Imagine a shift in the Earth so profound that it could force our entire planet to spin on its side after a few million years, tilting it so far that Alaska would sit at the equator. Princeton scientists have ...
Volcanoes helped species survive ice ages, research says
An international team of researchers has found evidence that the steam and heat from volcanoes and heated rocks allowed many species of plants and animals to survive past ice ages, helping scientists understand ...
Mongol Empire rode wave of mild climate, says study
Researchers studying the rings of ancient trees in mountainous central Mongolia think they may have gotten at the mystery of how small bands of nomadic Mongol horsemen united to conquer much of the world ...
Dinosaur-killing impact acidified oceans: study
The space rock that smashed into Earth 65 million years ago, famously wiping out the dinosaurs, unleashed acid rain that turned the ocean surface into a witches' brew, researchers said Sunday.
First animals oxygenated the ocean, research suggests
The evolution of the first animals may have oxygenated the earth's oceans – contrary to the traditional view that a rise in oxygen triggered their development.
Sun's energy influences 1,000 years of natural climate variability in North Atlantic
Changes in the sun's energy output may have led to marked natural climate change in Europe over the last 1000 years, according to researchers at Cardiff University.
Study reveals four new man-made gases in the atmosphere
Scientists at the University of East Anglia have identified four new man-made gases in the atmosphere – all of which are contributing to the destruction of the ozone layer.
Researchers calculate how river networks move across a landscape
Large river networks—such as those that funnel into the Colorado and Mississippi rivers—may seem to be permanent features of a landscape. In fact, many rivers define political boundaries that have been ...