China exports fall for the fourth month in a row
The declines in trade were not as bad as expected and an improvement on the previous month.
2023-09-07 13:17
'He would call for peace': Bernice King corrects Amy Schumer after comedian posts MLK video in support of Israel
Martin Luther King Jr 'believed militarism (along with racism and poverty) to be among the interconnected Triple Evils,' Bernice King said
2023-11-01 20:55
Katy Perry releases new range of boots amid Russell Brand scandal, here's what they cost and where you can buy them
Katy Perry took to social media to share photos of her posing on a scooter, modeling her new line of cowboy boots
2023-09-20 15:15
Inside a US abortion clinic director's post-Roe odyssey
As a first-year college student from the Minneapolis suburbs, Tammi Kromenaker was proudly anti-abortion, at one point slapping a "God is pro-life" bumper sticker...
2023-06-20 11:30
Focus on Farrell as England face lowly Chile at World Cup
Former winners England face Chile for the first time in the Rugby World Cup on Saturday with all eyes on...
2023-09-22 10:26
Native Hawaiian drag queens in Las Vegas showcase islands' gender-fluid heritage
The concept of gender-fluidity -- or “mahu” -- has existed in Hawaii for hundreds of years and is the hallmark of a culture that allows space between the concepts of male and female
2023-06-24 13:17
Alvarez, McCormick each have 2 hits, Astros beat Cubs 7-3
Yordan Alvarez had two hits and drove in two runs and Chas McCormick added two hits and made a nifty grab in the Houston Astros’ 7-3 victory over the Chicago Cubs on Tuesday night
2023-05-17 10:46
Scientists baffled after discovering that the Earth's core is 'leaking'
The name “core” suggests something hard and fixed but, it turns out, the Earth’s core is leaking. That is, at least, according to a team of top scientists, who drew the conclusion after analysing 62-million-old Arctic rocks. Geochemists from the California Institute of Technology and Woods Hole Oceanographic Institution detected record concentrations of helium 3 (3He) and helium 4 (4He) isotopes in the rocks, which suggest a slow trickle up from the very heart of our planet. They believe there could be reserves of the elusive gas buried some 2,900km underground. Helium is a surprisingly rare element on the Earth’s surface and experts have yet to establish just how much of it remains trapped deep beneath our feet. However, the new discovery has provided them with a fresh insight into the most mysterious region of our world. Understanding the presence of these helium isotopes could illuminate key processes in the core, such as how the Earth generated its life-protecting magnetic field. Most helium in the universe dates back to the Big Bang which occurred 13.8 billion years ago. The Earth swallowed up some of this as an infant planet, but mostly burped it all away during its 4.6 billion-year-long formation, as Science Alert reports. This means that any traces of helium found in volcanic rock – such as the samples unearthed in the Arctic – are believed to come either from pockets of mantle that are yet to release their helium, or from a vast, slow-leaking reserve. Basaltic lavas on Canada's Baffin Island contain some of the world's highest ratios of 3He to 4He, which geologists believe indicates that the gas's presence is not to do with the atmosphere, but rather the sign of deeper terrestrial origins. Several years ago, geochemist Forrest Horton uncovered helium isotope ratios of up to 50 times that of atmospheric levels in samples collected from Baffin's lava fields. This unusual concentration was also detected in lavas collected from Iceland. Horton and his team wondered if the helium in both samples may have derived from an ancient reservoir deep within the crust. And, it seems, their hunch may have been right. Their latest analysis – including specimens of the mineral olivine taken from dozens of sites across Baffin and surrounding islands – has delivered the highest ratio of 3He to 4He ever recorded in volcanic rock – measuring nearly 70 times anything previously detected in the atmosphere, as Science Alert notes. The team also considered ratios of other isotopes in order to rule out factors that may have altered the helium’s composition post-volcanic eruption, and found that the ratio of isotopes in the gas neon also matched the conditions present during the Earth’s formation. Despite advances in geology, the Earth’s core remains a great mystery, given that we have no way of directly exploring its core. The deepest hole humans have ever dug – branded the "entrance to hell" – extended an impressive 12,263m (40,230ft) down, but even that doesn’t come close to breaking through the crust to the layers beneath. Still, thanks to techniques like seismic tomography – which analyses how waves of energy travel through different materials during earthquakes – we’ve been able to map out the world’s interior. And carefully crafted simulations, based on the thermodynamics and pressures of our planet’s innards, suggest reserves of noble gases (like helium and neon) trapped in the core could have been protected as the Earth grew before seeping into the surrounding mantle over time. If the core is leaking, this could teach us a thing or two about how planets like ours form and how life, eventually, emerges. Sign up for our free Indy100 weekly newsletter Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings
2023-10-23 17:29
What Ukraine must do to win in its southern push -- and what Russia has in reserve
The Ukrainian military is doubling down on efforts to break through thick Russian defenses in its counteroffensive in the south, which has struggled to gain momentum since being launched at the beginning of June.
2023-07-29 12:28
Aston Villa make push for Spain winger Nico Williams
Aston Villa have opened talks over a deal for Athletic Club winger Nico Williams as they look to lure him to England.
2023-06-14 19:23
Fed agreed need for more rate hikes after May meeting was 'less certain'
By Howard Schneider WASHINGTON Federal Reserve officials "generally agreed" last month that the need for further interest rate
2023-05-25 02:57
Danish dynamite Vingegaard, slow-burn Tour de France winner
Jonas Vingegaard was given the ultimate stamp of approval this week when cycling's all-time great Eddy Merckx described him as the...
2023-07-23 02:16
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