The complicated history of how the Earth’s atmosphere became breathable
Biology, geology, and chemistry all worked together to make the present atmosphere. Enlarge (credit: Aurich Lawson | Getty Images) The Great Oxygenation Event, which occurred around 2.4 billion years ago, was one of the.....»»
Portal to the past: Geologist identifies metamorphic rock as a crucial feature of the ancient Earth"s carbon cycle
If Earth's history were a calendar year, humans would not appear until the last few minutes before midnight on Dec. 31. During the Proterozoic Eon—2.5 billion years to 543 million years ago—the sun was still a young star, much dimmer than today,.....»»
Webb confirms a longstanding galaxy model
Perhaps the greatest tool astronomers have is the ability to look backward in time. Since starlight takes time to reach us, astronomers can observe the history of the cosmos by capturing the light of distant galaxies......»»
Future space telescopes could be made from thin membranes, unrolled in space to enormous size
Space-based telescopes are remarkable. Their view isn't obscured by the weather in our atmosphere, and so they can capture incredibly detailed images of the heavens. Unfortunately, they are quite limited in mirror size......»»
Apophis: A new European space mission could get up close with a large asteroid that"s set to brush by Earth
The European Space Agency has given the go-ahead for initial work on a mission to visit an asteroid called (99942) Apophis. If approved at a key meeting next year, the robotic spacecraft, known as the Rapid Apophis Mission for Space Safety (Ramses),.....»»
Cobalt-copper tandem system offers sustainable approach for converting carbon dioxide to ethanol
The continuing release of carbon dioxide into the atmosphere is a major driver of global warming and climate change with increased extreme weather events. Researchers at Johannes Gutenberg University Mainz (JGU) have now presented a method for effect.....»»
Computer modeling research reveals the changing history of a global ice sheet
Imagine that a massive ice sheet covered Canada and oozed down over a large part of the northern United States, like icing spilling down the side of a cake. That was the situation somewhere between 19,000 and 26,000 years ago. The ice sheet covered l.....»»
The world promised to tame methane: Emissions are still rising
Sitting in his cramped office in Paris, Manfredi Caltagirone admits that one of the world's highest-profile efforts to cut methane emissions so far isn't stopping the gas from escaping and warming the atmosphere......»»
A physicist and his cat "reveal" the equation of cat motion
In the social media age, there is little doubt about who is the star of the animal kingdom. Cats rule the screens just as their cousins, the lions, rule the savanna. Thanks to Erwin Schrödinger, this feline also has a place of honor in the history o.....»»
23 Years of the iPod: How Elite Obsolete Electronics keeps the music playing
There’s probably enough material to produce a book about the importance of the iPod to Apple’s history (and revenue). Yet, the company said goodbye to the brand in 2022 as it finally discontinued the last edition of the iPod Touch. There is a sma.....»»
China space station crew returns to Earth after 6 months in space
Three Chinese astronauts returned to Earth on Monday after a six-month stay on the Tiangong space station, part of China's effort to be a global leader in space exploration......»»
You can now search through your chat history with ChatGPT on the web
OpenAI makes ChatGPT history searchable......»»
Chinese space station crew returns after six months in orbit
A three-person Chinese crew returned to Earth early Monday after more than six months aboard the Tiangong space station, state news agency Xinhua reported......»»
Geodynamic mantle-flow model explains deformation of continental crust block in North China
Cratons are fascinating yet enigmatic geological formations. Known to be relatively stable portions of the Earth's continental crust, cratons have remained largely unchanged for billions of years. Although cratons have survived many geological events.....»»
Ancient mud reveals Australia"s burning history over the past 130,000 years—and a way forward in current fire crisis
Increased land management by Aboriginal people in southeastern Australia around 6,000 years ago cut forest shrub cover in half, according to our new study published in Science of fossil pollen trapped in ancient mud......»»
Report reveals how the state of our oceans is intrinsically linked to human health
A study published in the journal One Earth explores how marine biodiversity conservation, human health and well-being are connected. The results suggest that marine protected areas can be good for both planet and people......»»
Sun Blasts Strong M9.8-Class Flare CME Earth-Directed
Sun Blasts Strong M9.8-Class Flare CME Earth-Directed.....»»
Earth"s climate will keep changing long after humanity hits net-zero emissions. Our research shows why
The world is striving to reach net-zero emissions as we try to ward off dangerous global warming. But will getting to net-zero actually avert climate instability, as many assume?.....»»
This is what it sounds like when the Earth"s poles flip
Is there something strange and alien confined deep inside the Earth? Is it trying to break free and escape into the heavens? No, of course not......»»
How Superman Helped Launch the Hubble Space Telescope
Long before it orbited Earth, the Hubble Space Telescope starred in a famous Superman comic.....»»
Inside a 1760 schoolhouse for Black children is a complicated history of slavery and resilience
Inside a 1760 schoolhouse for Black children is a complicated history of slavery and resilience.....»»