7,844 results
7,844 results for: Geology
- Climate
Fossil fuel use may emit 40 percent more methane than we thought
Ice cores suggest natural seeps release less methane than was estimated, meaning industry produces nearly all of today’s geologic methane emissions.
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The human story
A century ago, it wasn’t obvious where humans got their start. But decades of fossil discoveries, reinforced by genetic studies, have pointed to Africa as our homeland.
- Space
Here are the highlights from a busy year in space launches
Satellites, Mars rovers and astronauts launched into space in 2020.
- Environment
Why planting tons of trees isn’t enough to solve climate change
Massive projects need much more planning and follow-through to succeed – and other tree protections need to happen too.
- Earth
An asteroid impact, not volcanism, may have made Earth unlivable for dinosaurs
New simulations add to growing evidence that an asteroid strike, rather than the Deccan Traps eruptions, caused the end-Cretaceous extinction.
- Planetary Science
China is about to collect the first moon rocks since the 1970s
The robotic Chang’e-5 mission, which landed on an unexplored region of the moon December 1, aims to gather samples and return them to Earth.
- Planetary Science
Farming on Mars will be a lot harder than ‘The Martian’ made it seem
Lab experiments developing and testing fake Martian dirt are proving just how difficult it would be to farm on the Red Planet.
- Paleontology
Why South America’s ancient mammals may have lost out to northern counterparts
When North and South America joined millions of years ago, mammals from the north fared better in the meetup. Extinctions in the south may be why.
- Earth
Geology, not CO2, controlled monsoon intensity in Asia’s ancient past
For millions of years, shifting geologic plates — not carbon dioxide levels —held the most sway over the intensity of Asia’s seasonal winds and rains.
- Earth
Earth’s rarest diamonds form from primordial carbon in the mantle
Chemical analyses of the rarest diamonds suggest the planet’s carbon cycle may not go as deep as scientists thought.
- Planetary Science
Meteorites might be more likely to strike near the equator
Meteorites from Antarctica have helped scientists assess the total number likely to hit Earth every year — and where they are most likely to fall.
- Climate
See how an Alaskan glacier has shrunk over time
Scientists have created a time-lapse series of images of the retreat of an Alaskan glacier using NASA and U.S. Geological Survey Landsat data.
