Greenland’s massive ice sheet saw a record net loss of 532 billion tonnes last year, raising red flags about accelerating sea level rise, according to findings released Thursday. That is equivalent to an additional 3 million tonnes of water streaming into global oceans every day, or six Olympic pools every second. Crumbling glaciers and torrents
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WASHINGTON — Fleet operator SES on Aug. 20 said it selected SpaceX to launch four recently ordered O3b mPower broadband satellites. The agreement means SpaceX will launch all 11 of SES’s O3b mPower satellites to medium Earth orbit across four Falcon 9 launches. Boeing is building all 11 mPower satellites. SES chose SpaceX in 2019
A gigantic fleet of floating rocks, spewed up from an underwater volcano in the Pacific Ocean, floated across the waves for thousands of miles. Eventually, it made it all the way to Australia, then started on a new project: revitalising the world’s largest (and very threatened) coral reef system. This unlikely chain of events may sound
A pair of Danish computer scientists have solved a longstanding mathematics puzzle that lay dormant for decades, after researchers failed to make substantial progress on it since the 1990s. The abstract problem in question is part of what’s called graph theory, and specifically concerns the challenge of finding an algorithm to resolve the planarity of
Having strong, biased opinions may say more about your own individual way of behaving in group situations than it does about your level of identification with the values or ideals of any particular group, new research suggests. This behavioural trait – which researchers call ‘groupiness’ – could mean that individuals will consistently demonstrate ‘groupy’ behaviour
Life was trying, but it wasn’t working out. As the Late Devonian period dragged on, more and more living things died out, culminating in one of the greatest mass extinction events our planet has ever witnessed, approximately 359 million years ago. The culprit responsible for so much death may not have been local, scientists now
California’s Death Valley recorded what may be its hottest ever temperature on Sunday (August 16) – a blazing 130 degrees Fahrenheit (54.4 degrees Celsius). If that National Weather Service (NWS) measurement holds up, it will have been the hottest August temperature recorded there by 3 F (1.7 C), the hottest temperature recorded in Death Valley
Scientists are ironing out the kinks for an ‘anti-solar power’ cell, one that can harvest energy at nighttime, even when the sun isn’t shining. Instead of absorbing light from the Sun and converting it into electricity, like a normal solar panel would, this type of technology works in reverse. At night, when there’s no incoming
Armagno was commissioned into the Space Force and promoted to three-star general Aug. 17 in a ceremony at the Pentagon. WASHINGTON — Lt. Gen. Nina Armagno is the first female U.S. Air Force general officer to transfer to the U.S. Space Force. Armagno was commissioned into the Space Force and promoted to three-star general Aug.
An international team of marine scientists have discovered 30 new species of invertebrates in deep water surrounding the Galapagos, the Ecuadoran archipelago’s national park authorities announced Monday. The deep-sea experts discovered fragile coral and sponge communities including 10 bamboo corals, four octocorals, one brittle star and 11 sponges – as well as four new species
The existence of time crystals – a particularly fascinating state of matter – was only confirmed a few short years ago, but physicists have already made a pretty major breakthrough: they have induced and observed an interaction between two time crystals. In a helium-3 superfluid, two time crystals exchanged quasiparticles without disrupting their coherence; an
They may not have had fancy mattresses, but the earliest human ancestors were quite capable of putting together a cosy place to sleep. Newly found remains of human bedding in an ancient archaeological site show just how clever they were at doing so. In the well-known site of Border Cave in South Africa, archaeologists have found
NASA’s Mars Odyssey probe has been orbiting the Red Planet for almost 19 years now, making it the longest continually active spacecraft in orbit around a planet other than Earth. That incredible tour of duty means it’s witnessed lots of strange things we can’t easily see from our terrestrial vantage point, and this stunning, colourful
A ship that has leaked more than 1,000 tonnes of oil in pristine waters off the Mauritius coast has split in two, its Japanese operator said Sunday. The bulk carrier MV Wakashio ran aground on a coral reef off the southeastern coast of Mauritius on July 25 and began oozing oil more than a week
WASHINGTON — Arianespace on Aug. 15 launched two communications satellites and a satellite servicer on an Ariane 5 rocket, completing the company’s first launch since the reopening of the Guiana Space Center in Kourou, French Guiana. Ariane 5 lifted off at 6:04 p.m. Eastern and deployed the spacecraft into geostationary transfer orbits over the course
There are some days when the rain falls peacefully and gently, nourishing the Earth. But on some other days the rain comes down in a torrential downpour that meteorologists like me call a cloudburst. Standing outside in one of these intense rainstorms can feel like being smothered in a heavy, wet towel. These storms can
For hundreds of thousands of years, humans have cultivated a close relationship with fire. But for all our fascination and intimacy, both with its dangers and its uses, fire can still stun us with something we’ve never seen before. The blue whirl flame was discovered quite by accident just a few years ago. Scientists were
For almost as long as stories have been told, stories have been deconstructed. For centuries, theorists, philosophers, and scholars have been pulling narrative structures apart, trying to pin down the most fundamental elements that give stories shape and meaning. As far back as the 4th century BCE, Aristotle was dissecting story structures in this vein,
The sudden dimming of one of the brightest stars in the night sky, Betelgeuse, could be due to a dust cloud spewing up from its surface, astronomers said on Thursday. The mystery has enthralled skywatchers since the star – part of the Orion constellation – began to lose luminosity last October, with some experts suggesting
A woolly brown rhinoceros that weighed two tons once roamed northeastern Siberia before mysteriously disappearing around 14,000 years ago. Was its demise caused by humans, or the warming climate of the time? A new study by a Swedish and Russian team of scientists who examined DNA fragments from the remains of 14 of these prehistoric mammals
The world could be headed for an ‘information catastrophe’ as the rate of production of digital bits continues to accelerate with no sign of stopping, new research suggests. In a new study – one firmly positioned in the more abstract quarters of theoretical physics, it must be said – researcher Melvin Vopson from the University
WASHINGTON — New Federal Communications Commission regulations will go into effect next week intended to make it easier for small satellites to get licenses for commercial operations. The FCC published in the Federal Register July 20 the final version of a new rule for what it calls “streamlined” licensing procedures for small satellites, which formally
A single locust is just bigger than a paper clip. But when these solitary critters attract others into a growing swarm, billions of locusts wind up flying together, forming a moving carpet that can block out the sun and strip the landscape of plants and crops. Giant swarms like this have devastated large swaths of
You wouldn’t think there’s much of a contest between soft hair or a little bit of beard stubble and a sharp steel razor – and yet, most of us know razors quickly lose their sharpness no matter how carefully you shave. Now scientists have a much better idea why this is happening at the smallest
A new analysis of the genomes of the most famous of ancient humans - Neanderthals and Denisovans - has revealed an as-yet-unidentified ancestor for our species – a branch of our distant family tree without any known label to put to it. The study also finds further evidence of interbreeding between humans and Neanderthals, but places it
One of the world’s most prominent astronomical observatories has a hole. On Monday, a 3-inch-thick (76-mm-thick) cable at the Arecibo Observatory broke, tearing a gash 100 feet (30 metres) long in the reflector dish of the 20-acre radio telescope in Puerto Rico. The observatory had just reopened after a temporary closure due to Tropical Storm
A massive chunk of Canada’s last fully intact ice shelf, some 4,000 years old, has broken off, reducing the shelf by more than half, scientists reported last Sunday. After separating from the shelf, the piece split in two, forming an iceberg almost the size of Manhattan. Climate change likely fuelled the collapse of the shelf, researchers
WASHINGTON — The coronavirus pandemic has slowed work on the first ViaSat-3 broadband satellite, making a launch in mid-2021 unlikely, Viasat CEO Mark Dankberg said Aug. 7. Speaking during an earnings call for the quarter ended June 30, Dankberg said the pandemic continued to weaken demand for inflight connectivity services, but did not have as
In the evolutionary tree of life, the lizard-like tuatara from New Zealand is on a branch all to itself. In the time of the dinosaurs, this extraordinary animal had lots of relatives all around the world, and yet now, there’s nothing else like it on Earth. According to new sequencing of the tuatara’s entire genome
The idea of freezing particles by warming them is counterintuitive, to say the least. But physicists have shown how specially designed mixtures ‘melt’ in the dark but crystallise the moment the lights come on, thanks to their unique thermal activity. Instead of bouncing the particles around and spreading them out, the researchers showed that by