The Sahara desert is one of the harshest, most inhospitable places on the planet, covering much of North Africa in some 3.6 million square miles of rock and windswept dunes. But it wasn't always so desolate and parched. Primitive ...
Earth Sciences
Jan 2, 2019
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Bottom trawling is a previously unaccounted for source of atmospheric carbon emissions, scientists reveal in a study published today. As the world scrambles to slash emissions caused by fossil fuels, deforestation and other ...
Environment
Jan 18, 2024
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503
Scientists at Caltech and Occidental College have discovered a methane-fueled symbiosis between worms and bacteria at the bottom of the sea, shedding new light on the ecology of deep-sea environments.
Ecology
Apr 4, 2020
6
708
(Phys.org) —Researchers at the California Institute of Technology (Caltech) have discovered evidence for an ancient delta on Mars where a river might once have emptied into a vast ocean.
Space Exploration
Jul 17, 2013
7
0
The world's oceans could harbor an unpleasant surprise for global warming, based on new research that shows how naturally occurring carbon gases trapped in reservoirs atop the seafloor escaped to superheat the planet in prehistory.
Environment
Feb 13, 2019
29
896
In the late 1980s, scientists discovered that when a whale dies, its carcass sinks to the ocean bottom and a new ecosystem springs forth around the carcass. The carcass becomes a food source for this new ecosystem. A team ...
Plants & Animals
Apr 24, 2023
0
80
Overfishing has dire consequences for ocean health and for the millions of people who depend on fish for food and well-being. Globally, catch has been steadily declining since the 1990s. It's a trend that's likely to continue ...
Environment
Feb 3, 2024
0
46
(PhysOrg.com) -- About 3.8 billion years ago, Earth was teeming with unicellular life. A little more than 4.5 billion years ago, the Earth was a ball of vaporous rock. And somewhere in between, the first organisms spontaneously ...
Earth Sciences
Sep 23, 2011
10
1
Where there's water there's life – even in brine beneath 60 feet of Antarctic ice, in permanent darkness and subzero temperatures.
Earth Sciences
Nov 26, 2012
2
0
Like the robotic rovers Spirit and Opportunity, which wheeled tirelessly across the dusty surface of Mars, a new robot spent most of July traveling across the muddy ocean bottom, about 40 kilometers (25 miles) off the California ...
Earth Sciences
Sep 9, 2009
1
0
