Saltier Oceans Could Have Prevented Earth From Freezing
The Sun shone 20% less brightly on early Earth, and yet fossil evidence shows that our planet had warm shallow seas where stromatolites -- microbial mats -- thrived. Now a study may have solved the "faint young Sun paradox," showing that saltier ocea.....»»
Earth"s greatest mass extinction 250 million years ago shows what happens when El Niño gets out of control
Around 252 million years ago, the world suddenly heated up. Over a geologically brief period of tens of thousands of years, 90% of species were wiped out. Even insects, which are rarely touched by such events, suffered catastrophic losses. The Permia.....»»
Lower shipping emissions may lead to higher global temperatures
Products that we depend on and use every day arrive by way of massive container ships to ports around the world. But the maritime shipping industry is also responsible for polluting the air and oceans with sulfur dioxide, which can negatively affect.....»»
Can we engineer our way out of the climate crisis? Scientists hope to find out
After decades of trying to stop Earth from heating up, scientists are exploring how to reverse climate change and maybe even cool the planet back down......»»
Machine learning powers discovery of new cryoprotectants for cold storage
Scientists from the University of Warwick and the University of Manchester have developed a cutting-edge computational framework that enhances the safe freezing of medicines and vaccines......»»
Video: Why Canadian trash costs $30,000 per gram
How do you turn nuclear waste into a $30,000-per-gram commodity? Tritium, once discarded as a by-product of Canadian nuclear reactors, is now one of the most expensive materials on Earth. This rare isotope of hydrogen powers glow-in-the-dark keychain.....»»
Environment takes center stage as global summits loom
Global warming. Disappearing plant and animal species. Fertile land turning to desert. Plastic in the oceans, on land, and the air we breathe......»»
Polaris Dawn’s high-speed journey home captured in photo from ISS
A remarkable photo taken by an astronaut aboard the ISS shows SpaceX’s Polaris Dawn Crew Dragon capsule entering Earth’s atmosphere at high speed on Sunday......»»
Exceptional new fish fossil sparks a rethink of how Earth"s geology drives evolution
Coelacanths are deep-sea fish that live off the coasts of southern Africa and Indonesia and can reach up to two meters in length. For a long time, scientists believed they were extinct......»»
So what are we to make of the highly ambitious, private Polaris spaceflight?
They flew high, they walked in space, and finally early on Sunday, they landed. Enlarge / Crew Dragon enters Earth's atmosphere on Sunday morning as recovery boats await. (credit: SpaceX) A white spacecraft, lightly toas.....»»
Tech billionaire returns to Earth after first private spacewalk
A billionaire spacewalker returned to Earth with his crew on Sunday, ending a five-day trip that lifted them higher than anyone has traveled since NASA's moonwalkers......»»
Earth from Space: Copernicus Sential-2 captures algal bloom in north Adriatic Sea
This Copernicus Sentinel-2 image captures algal bloom swirls in the north Adriatic Sea, along the coast of Italy......»»
Artemis missions could put the most powerful imaging telescope on the moon
Ground-based interferometry on Earth has proven to be a successful method for conducting science by combining light from several telescopes into acting like a single large telescope. But how can an ultraviolet (UV)/optical interferometer telescope on.....»»
Study shows microbial diversity differences in volcanic cones and craters
Volcanic activity alters the Earth's surface and promotes the development of new ecosystems, providing valuable models for studying soil formation processes such as microbial composition and vegetation succession. Increasing evidence suggests that so.....»»
Stuck-in-space astronauts make first public comments since Boeing capsule left without them
Stuck-in-space astronauts Butch Wilmore and Suni Williams said Friday it was hard to watch their Boeing capsule return to Earth without them......»»
Evidence of “snowball Earth” found in ancient rocks
An outcrop in Scotland has material from when the Earth went into a deep freeze. Enlarge / Artist's conception of the state of the Earth during its global glaciations. (credit: NASA) Earth has gone through many geologic.....»»
Earth to have new mini-moon for two months
A pair of asteroid dynamics researchers from Universidad Complutense de Madrid Ciudad Universitaria have found that a small asteroid will make one orbit around the Earth starting this month before departing back into other parts of the solar system......»»
Erbium-doped electrocatalyst enhances oxygen evolution reactions in acidic environments
A group of researchers has developed an electrocatalyst that promises to significantly enhance the efficiency and stability of oxygen evolution reactions (OER) in acidic environments. By incorporating a rare earth element, erbium (Er), into the commo.....»»
Want to walk in space? It might cost you more than money
A tech billionaire has become the first layperson to perform a space walk. Hundreds of miles above Earth, Jared Isaacman took part in an intricate performance of science and engineering that often comes with some serious health risks, even for profes.....»»
Lakes drying up leave Greeks in despair
Lake Koronia, one of largest in Greece, is shrinking after a prolonged drought and a summer of record-breaking temperatures, leaving behind cracked earth, dead fish and a persistent stench......»»
Earth had its hottest August in a 175-year record
August 2024 was Earth's hottest August in NOAA's 175-year climate record......»»