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Did Volcanoes Kill the Dinosaurs?
Impact events may have been responsible for some mass extinction events on Earth. This panel is from Issue 3 of Astrobiology: The Story of our Search for Life in the Universe, available at:...
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Earth’s own evolution used as guide to hunt exoplanets
This artistic depiction shows exoplanet Kepler-62f, a rocky super-Earth size planet, located about 1,200 light-years from Earth in the constellation Lyra. Kepler-62f may be what a prebiotic Earth may...
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What is the origin of water on Earth?
While everybody agrees that our blue planet is rich in water, this observation is at odd, first, with the exploration of other rocky planets, genuinely lacking surface water, and second, with the idea...
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Simulating Early Ocean Vents Shows Life’s Building Blocks Form Under Pressure
A seafloor vent called a “white smoker” spews mineral-rich water into the ocean and serves as an energy hub for living creatures. Some scientists think life on Earth may have begun around similar...
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Digital illustration DNA structure in colour background ; Shutterstock ID 150725585; PO: 100 47953; Job: Shutterstock; Other: Public Affairs To study the history of life on Earth and look for it beyond...
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Alternative Earths
An artist’s impression of what the Earth may have looked like over three billion years ago, when our planet was a very different place, but still played host to a primitive form of life. Image CREDIT:...
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How Animals Sense Earth’s Magnetic Field
Homing pigeons in flight use magnetoreception to find their way. Image credit: nitramtrebla/CC BY-SA 2.0.TAL CAMERA The secrets behind magnetoreception – that is, the ability of some animals to sense...
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Asteroid impact, not volcanoes, made the Earth uninhabitable for dinosaurs
Modelling of the Chicxulub asteroid impact 66 million years ago shows it created a world largely unsuitable for dinosaurs to live in. (Ankylosaurus magniventris drinking as the asteroid strikes): Fabio...
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Do dying stars breathe life into Earth?
As dying stars take their final few breaths of life, they gently sprinkle their ashes into the cosmos through the magnificent planetary nebulae. These ashes, spread via stellar winds, are enriched with...
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“Snowball Earths”– triggered by plunge in incoming sunlight?
The trigger for “Snowball Earth” global ice ages may have been drops in incoming sunlight that happened quickly, in geological terms, according to an MIT study.Image: Wikimedia, Oleg Kuznetsov At least...
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