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Acid Rain, Ozone Depletion & the Permian Extinction
A new study shows that massive volcanic eruptions and acidic rain could have played a role in the Great Dying - the largest mass extinction yet known in Earth's history.
Amber Provides Insight into Evolution of Earth's Atmosphere
Scientists are gaining new insight into Earth's atmospheric composition over the past 220 million years by studying amber deposits from around the world.
What Astrobiology Teaches Us About Living Well on Earth
Astrobiology's study of life in the universe has much to say about how humans can live sustainably on Earth.
Earth May Have Formed in a Series of Steps
Scientists recreated the intense pressures and temperatures found deep within the Earth, resulting in a discovery that complicates theories of how the planet and its core were formed.
The Longevity of Human Civilizations
How long can civilization last? That question has long been asked by astronomers searching for intelligent alien life, and recently was the focus of a symposium in the Library of Congress.
Ancient Soils Reveal Clues to Early Life on Earth
New research indicates that oxygen appeared in Earth's atmosphere up to 700 million years earlier than previously thought.
Late Cretaceous was Likely Ice-Free
Contrary to previous theories, new evidence suggests that no ice sheet formed during the Late Cretaceous Period.
Earth Could Be Habitable for 1.75 Billion More Years?
In a new study, astrobiologists have estimated the habitable lifetime of Earth based on the planet's distance from the Sun and the temperatures required for liquid water.
The Dynamics of Earth's Core
New research reveals that the Earth's inner core rotates in an eastward direction, and spins faster than the rest of the planet.
The Largest Volcano on Earth
Scientists have discovered the largest single volcano yet documented on Earth.
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