From the deep waters of the Galápagos to the violent storms of Jupiter, this week’s science has been all about surprises. We dive 6,000 feet to meet a brand-new species, peer inside the skull of a 380-million-year-old fish, watch an Antarctic glacier collapse at record speed, and find out what beetroot juice has to do with the bacteria in your mouth.
1. A tiny blue octopus discovered nearly 6,000 feet beneath the Galápagos
Scientists have officially identified a brand-new species of deep-sea octopus living in the cold waters surrounding the Galápagos Islands. Named Microeledone galapagensis, the golf-ball-sized creature was first spotted in 2015 by a remotely operated submersible exploring an underwater mountain 1,773 metres (about 5,800 feet) below the surface near Darwin Island. Researchers from the Field Museum and the Charles Darwin Foundation, led by octopus expert Janet Voight, used micro CT scanning to study the only known specimen without dissecting it. The 3D scans revealed unique features in its mouth, beak and internal organs, confirming that it belonged to no known species. The team published their description in the journal Zootaxa. The find is a reminder that the deep ocean — by far the largest habitat on Earth — remains almost completely unexplored.
Think About It: If most of Earth’s habitats are in the deep ocean, why do you think we know so much more about life on land?
Image credit: Charles Darwin Foundation — view source image
Originally reported by: ScienceDaily / Field Museum
2. A 380-million-year-old Antarctic fish that hints at how animals walked onto land
Researchers at Flinders University in Australia have peered inside the fossilised skull of Koharalepis jarviki, a metre-long predatory fish that swam in freshwater 380 million years ago in what is now Antarctica. Using non-destructive neutron and synchrotron imaging, the team mapped the braincase of the only known specimen without damaging it. They found openings on top of the skull that may have helped the fish gulp air at the water’s surface, and a light-sensitive organ linked to circadian rhythms. Koharalepis belonged to a group called Canowindridae — lobe-finned fish closely related to the earliest four-limbed land vertebrates (tetrapods). The work, published in Frontiers in Ecology and Evolution, suggests these fish were already adapting to shallow, oxygen-poor waters long before any vertebrate took its first steps on land.
Think About It: What kinds of environmental pressures might have pushed lobe-finned fish to start spending time at the surface — or even out of the water?
Image credit: Painting by Thomas Turner / Flinders University — view source image
Originally reported by: ScienceDaily / Flinders University
3. Jupiter’s lightning may be 100 times more powerful than Earth’s
Jupiter is famous for its giant storms, but new data from NASA’s Juno spacecraft suggest the lightning inside them is far more violent than anything we see on Earth. A team at UC Berkeley used Juno’s microwave radiometer to measure radio pulses from isolated “stealth” superstorms during a quiet period in 2021–2022. Out of 613 pulses analysed, some were estimated at more than 100 times the energy of a typical Earth lightning bolt — and possibly thousands of times stronger. The researchers think the difference comes from Jupiter’s hydrogen-dominated atmosphere, where moist air is heavier than the surrounding gas. This makes it harder for warm air to rise, so when storms finally erupt they release enormous amounts of energy through cloud-top towers more than 100 kilometres tall. The findings were published in AGU Advances.
Think About It: Why does the composition of a planet’s atmosphere change how powerful its storms can be?
Image credit: AI illustration / ScienceDaily.com — view source image
Originally reported by: ScienceDaily / UC Berkeley
4. Ancient Canadian rocks are quietly producing huge amounts of hydrogen
Geologists from the University of Toronto and the University of Ottawa have shown that ancient rocks deep in the Canadian Shield are naturally producing hydrogen gas — and lots of it. Working at a mine near Timmins, Ontario, the team measured roughly 8 kilograms of hydrogen escaping each year from a single borehole, with flows continuing for at least a decade. Scaled across the mine’s 15,000 boreholes, that adds up to more than 140 tonnes of hydrogen annually — enough energy, they calculate, to power around 400 homes for a year from one site. The gas is produced by slow chemical reactions between billion-year-old rocks and groundwater. Published in PNAS, the study is the first long-term measurement of “white hydrogen” production in real-world conditions, and it hints at a clean fuel source hiding under regions already known for their mineral wealth.
Think About It: Why might “white” hydrogen produced naturally underground be cleaner than the hydrogen we currently make from natural gas?
Image credit: Barbara Sherwood Lollar / University of Toronto — view source image
Originally reported by: ScienceDaily / University of Toronto
5. Beetroot juice lowers blood pressure — by changing the bacteria in your mouth
A new study from the University of Exeter has found that older adults who drank concentrated beetroot juice twice a day for two weeks saw measurable drops in their blood pressure. Younger participants did not see the same effect. The secret seems to be in the mouth. Beetroot is rich in nitrate, and certain mouth bacteria convert dietary nitrate into nitric oxide, a molecule that helps blood vessels relax. Bacterial gene sequencing showed that the older group had a notable fall in potentially harmful Prevotella bacteria and a rise in beneficial Neisseria. The study, published in Free Radical Biology and Medicine, is the largest of its kind. It hints that supporting your oral microbiome — through nitrate-rich vegetables like beetroot, spinach, rocket and kale — could be one underrated route to a healthier heart later in life.
Think About It: Why might bacteria in the mouth play such a big role in how the body processes nutrients from food?
Image credit: Shutterstock — view source image
Originally reported by: ScienceDaily / University of Exeter
6. Antarctica’s Hektoria Glacier retreats 15 miles in just 15 months
Satellites have now confirmed the fastest retreat of grounded glacial ice ever recorded in modern times. Between early 2022 and spring 2023, Antarctica’s Hektoria Glacier lost about 25 kilometres (15 miles) in length, with an astonishing 8 kilometres disappearing in just two months. Hektoria sits on the Antarctic Peninsula, where the loss of the Larsen B ice shelf in 2002 had already removed a key buttress. When landfast sea ice broke up in January 2022, the glacier’s floating ice tongue began calving away. The exposed grounded ice then sat on a wide, flat plain of bedrock — terrain that allowed seawater to slip beneath it at high tide, lifting and breaking off huge slabs. The findings, published in Nature Geoscience, are a warning that larger glaciers with similar geometry could collapse far faster than expected.
Think About It: Why does losing a floating “ice tongue” matter more than it might first appear — even though floating ice doesn’t directly add to sea level?
Image credit: NASA Earth Observatory / Lauren Dauphin (Landsat 8) — view source image
Originally reported by: ScienceDaily / NASA Earth Observatory
From the deepest ocean trenches to the cloud tops of Jupiter, this week reminds us that science thrives on careful observation — and on the patience to keep looking when something doesn’t quite make sense. Got a favourite story from this week, or one you think we missed? Share it with your students, your colleagues, or in the comments below.
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