There's a river of molten iron racing beneath Earth's surface — and it's gaining speed

A look at Earth from outer space revealed a surprising find some 1,400 miles beneath Earth's crust: a molten iron river flowing beneath Russia and Canada. The 260-mile-wide stream, detected by magnetic field readings taken by the European Space Agency's Swarm satellites, is as hot as the Sun's surface and, in recent years, has been flowing progressively faster.
At this point, the stream is flowing westward at a rate of 25 miles per year, a rate "three times faster than the normal outer-core speeds," Gizmodo reported. One scientist told BBC News the flow was "probably the fastest motion we have anywhere within the solid Earth."
While scientists knew Earth's liquid core moved around, the study's team leader Phil Livermore said their "observations hadn't been sufficient until now to see this significant jet." "We know more about the Sun than the Earth's core," said team member Chris Finlay. "The discovery of this jet is an exciting step in learning more about our planet's inner workings."
The Week
Escape your echo chamber. Get the facts behind the news, plus analysis from multiple perspectives.

Sign up for The Week's Free Newsletters
From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox.
From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox.
Scientists think they've figured out the physics of why the river exists in the first place — though why it's speeding up remains a mystery.
A free daily email with the biggest news stories of the day – and the best features from TheWeek.com
-
Nepal chooses toddler as its new ‘living goddess’
Under the Radar Girls between two and four are typically chosen to live inside the temple as the Kumari – until puberty strikes
-
October 5 editorial cartoons
Cartoons Sunday's political cartoons include half-truth hucksters, Capitol lockdown, and more
-
Jaguar Land Rover’s cyber bailout
Talking Point Should the government do more to protect business from the ‘cyber shockwave’?
-
US tipped to help Kyiv strike Russian energy sites
Speed Read Trump has approved providing Ukraine with intelligence for missile strikes on Russian energy infrastructure
-
Netanyahu agrees to Trump’s new Gaza peace plan
Speed Read At President Trump's meeting with Israeli Prime Minister Benjamin Netanyahu, they agreed upon a plan to end Israel’s war in Gaza
-
Russia is ‘helping China’ prepare for an invasion of Taiwan
In the Spotlight Russia is reportedly allowing China access to military training
-
Moldova gives decisive win to pro-EU party
Speed Read The country is now on track to join the European Union within five years
-
Interpol arrests hundreds in Africa-wide sextortion crackdown
IN THE SPOTLIGHT A series of stings disrupts major cybercrime operations as law enforcement estimates millions in losses from schemes designed to prey on lonely users
-
UK, 3 Western allies recognize Palestinian state
Speed Read Britain, Canada, Australia and Portugal formally recognized the state of Palestine
-
Russia slams Kyiv, hits government building
Speed Read This was Moscow's largest aerial assault since launching its full-scale invasion in 2022
-
China's Xi hosts Modi, Putin, Kim in challenge to US
Speed Read Chinese President Xi Jinping hosted Indian Prime Minister Narendra Modi, Russian President Vladimir Putin and other Asian leaders at an SCO summit