Iran’s folded rocks are millions of years old, formed when the Eurasian and Arabian tectonic plates collided. Satellite image from 2023. (Image credit: NASA Earth Observatory) These folded rocks form distinct mountain ranges and valleys southwest of the Caspian Sea.…
Satellite images from left to right show the size of the Aral Sea in 2000, 2007, and 2014. The drying up of the Aral Sea is a result of human activity and drought. (Image credit: NASA Earth Observatory) The level…
The new model suggests that the magma ocean formed during the first few hundred million years of Earth’s existence. (Image credit: NEMES LASZLO/SCIENCE PHOTO LIBRARY via Getty Images) New research shows that early in Earth’s evolution there was a vast…
The vibrant hues of Lake Razaza are due to the different species of algae that inhabit every part of this drought-stricken artificial lake. (Image credit: NASA/ISS Program) This astronaut’s haunting photograph illustrates the surprising duality of a man-made lake in…
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Were Earth’s Oceans Ever Green? (Image credit: 100Y Design via Shutterstock) Nearly three-quarters of Earth’s surface is covered by oceans, making the planet appear as a pale blue dot when viewed from space. But Japanese scientists have made a compelling…
The original Earth’s crust was remarkably similar to what exists today. (Photo courtesy of Roberto Machado Noa via Getty Images) New research shows that the modern Earth’s crust has a strikingly similar composition to the planet’s first outer shell, known…
Pacific sea surface temperatures are below average during La Niña, but have warmed in the past month. (Image credit: Stocktrek via Getty Images) Scientists just reported that the long-awaited La Niña climate phenomenon has ended after just a few months.…
Because Wilkes Land Crater is hidden beneath the Antarctic ice sheet, it can only be detected using gravity measurements and other mapping techniques. On this map, the crater is in the lower right corner and forms a light U-shape surrounded…
Close-up of a caterpillar. (Image credit: Scenics & Science via Alamy Stock Photo) The pest known as fall armyworm has spread across the globe, posing a threat to food security in more than 80 countries. But new research has identified…
During a field expedition to the Lava Creek Tuff near Shell, Wyoming, researchers found evidence of two significant volcanic eruptions. (Image credit: USGS/Photo by Madison Myers) Wyoming scientists have found evidence of two mysterious volcanic eruptions that preceded Yellowstone’s most…
A woman with two children draws water from a well in the Thar Desert, also known as the Great Indian Desert. (Image credit: Royalty-free via Getty Images) India’s Thar Desert has become 38% greener over the past two decades, thanks…