A new international study casts doubt on the leading theory of what causes ice ages around the world—changes in the way the Earth orbits the sun.
Earth Sciences
Mar 20, 2015
45
91
Ground-penetrating radar from China's Martian rover Zhurong reveals shallow impact craters and other geologic structures in the top five meters of the Red Planet's surface. The images of the Martian subsurface are presented ...
Planetary Sciences
Feb 14, 2023
1
1036
Curtin University-led research has found new evidence to suggest that the Earth's first continents were not formed by subduction in a modern-like plate tectonics environment as previously thought, and instead may have been ...
Earth Sciences
Jul 8, 2020
0
396
Our world may seem fragile, but Earth has been around for a very long time. If we ventured far back into the past, would we reach a time when it looked fundamentally different?
Earth Sciences
Mar 12, 2024
0
105
Extensive systems of fossilised riverbeds have been discovered on an ancient region of the Martian surface, supporting the idea that the now cold and dry Red Planet had a warm and wet climate about 4 billion years ago, according ...
Space Exploration
Aug 23, 2016
5
1219
Rare earth elements are the gold of the 21st century: rare and highly prized all over the world. Most known and economically viable sources of rare earths are located in China, where more than 80 percent of them are refined. ...
Earth Sciences
Mar 11, 2021
1
35
Scientists have long known that a reduction in Atlantic Ocean currents bringing warm water to the Northern Hemisphere from the tropics created abrupt cooling known as the Younger Dryas cold period nearly 13,000 years ago, ...
Earth Sciences
Jan 25, 2018
2
76
Volcanic eruptions in the Cascade Range of the Pacific Northwest over the last 2.6 million years are more numerous and closely connected to subsurface signatures of currently active magma than commonly thought, according ...
Earth Sciences
Aug 14, 2020
0
784
Until now, Earth was the only planet known to have vast reservoirs of water in its interior. Scientists analyzed the water content of two Martian meteorites originating from inside the Red Planet. They found that the amount ...
Space Exploration
Jun 21, 2012
12
0
New evidence gathered from the Karoo Basin in South Africa sheds light on a catastrophic extinction event that occurred more than 250 million years ago and wiped out more than 90 percent of life in Earth's oceans and about ...
Earth Sciences
Nov 2, 2015
2
2053
