Dunes develop when wind-blown sand organizes into patterns, most often in deserts and arid or semi-arid parts of the world. Every continent on Earth has dune fields, but dunes and dune-like sand patterns are also found across ...
Planetary Sciences
Sep 30, 2021
0
429
In its search for signs of ancient microbial life on Mars, NASA's Perseverance rover is once again preparing to collect the first of many rock core samples that could eventually be brought to Earth for further study.
Planetary Sciences
Aug 26, 2021
1
1131
Earthquakes shake and rattle the world every day. The U.S. Geological Survey (USGS) has estimated the number of earthquakes at some half a million a year, with some 100,000 that can be felt, and about 100 that cause damage. ...
Earth Sciences
Aug 6, 2021
0
254
Ask any space explorer, and they'll have a favorite photo or two from their mission. For Kevin Hand, a scientist at NASA's Jet Propulsion Laboratory in Southern California and co-lead of the Perseverance rover's first science ...
Planetary Sciences
Aug 4, 2021
0
828
If the Earth's oceans were drained completely, they would reveal a massive chain of undersea volcanoes snaking around the planet. This sprawling ocean ridge system is a product of overturning material in the Earth's interior, ...
Earth Sciences
Jul 29, 2021
0
294
Forces acting inside the Earth have been constantly reshaping the continents and ocean basins over millions of years. What Alfred Wegener published as an idea in 1915 has been accepted since the 1960s, providing a unifying ...
Earth Sciences
Mar 17, 2021
1
32
At some point between 300 million and 1 billion years ago, a large cosmic object smashed into the planet Venus, leaving a crater more than 170 miles in diameter. A team of Brown University researchers has used that ancient ...
Astronomy
Jan 28, 2021
0
158
Scientists from the Laboratoire de géologie de Lyon: Terre, planètes et environnement (CNRS/ENS de Lyon/Université Claude Bernard Lyon 1) report that a small amount of molten rock located under tectonic plates encourages ...
Earth Sciences
Oct 21, 2020
0
129
Thank goodness for the Earth's crust: It is, after all, that solid, outermost layer of our planet that supports everything above it.
Earth Sciences
Jun 26, 2020
4
739
By providing the first estimate of how much hydrogen is available to fuel microbial life in the sunless sub-seafloor crust beneath the Mid-Ocean Ridge (MOR), a new Duke University-led study sheds light on one of Earth's least ...
Earth Sciences
May 18, 2020
4
963
