What is the polar vortex? How it’s responsible for dangerous cold

Explainers

Science Explained

Science

Today's top Science news from The Weather Network

Featured Science News

What exactly is 'wind chill'? It brings these hidden dangers

Eyes up! The Northern Lights may put on an encore performance Tuesday night

Space

The latest space news from our science writers at The Weather Network

Space News

Photos: Bright auroras light up the sky in Canada and around the world

When is the cold too cold? How extreme cold warnings are issued

A very strong solar storm just hit Earth! Expect bright auroras tonight!

The freezing level is the invisible line that controls winter

ISS astronauts return to Earth early due to illness of crew member

Snow is coming. Here's how much it could slow down your commute

Massive iceberg A-23A turns bright blue as it finally dies off

Earth Science

The latest in earth science news from The Weather Network

Artemis 2 may launch soon, shattering a 55-year-old spaceflight record

85% of California's gold undiscovered: Heavy snow can make it more accessible

Astronaut medical issue forces unprecedented early return of space station crew

Ready for sunsets after 5 p.m.? They’re on the way in Ontario

Impossibly hot 'baby' galaxy cluster may rewrite the cosmic rulebook

Canada looks forward to a ‘January thaw’ every year. What is it?

New report predicts catastrophic impacts of megathrust quake in B.C.

Jupiter shines at its brightest this weekend, alongside the Winter Triangle

65-foot towers of snow: Journey through these famous giants

Look up! The Full Wolf Supermoon shines in the sky tonight!

Look up! Auroras may shine Wednesday night to welcome the New Year

What's the science behind chinook headaches? Experts still aren't sure

What is a flash freeze? Winter’s spontaneous danger explained

The Iberian Peninsula is slowly rotating clockwise, experts say

Why the stars twinkle so brightly in your dark winter skies

2025 in Review: The best Space and Astronomy stories of the year

A winter storm’s track can make or break your forecast

Alien comet 3I/Atlas is now leaving. Here's where you can still see it

Freezing rain and ice pellets are dangerous winter hazards

Huge Hunga-Tonga volcanic eruption altered atmosphere, report finds

What turns a snowstorm into a raging blizzard?

Look up! The Ursid meteor shower peaks on the Winter Solstice

Scientists find unusual structure under Bermuda that causes it to ‘float’

'Weather bombs': Explosive storms that create ferocious conditions

Record rains revive a dry, ancient lake in Death Valley

Mars spacecraft mysteriously goes silent, NASA investigating

Look up! The fabulous Geminid meteor shower peaks this weekend

What’s a Pineapple Express? Diving into this robust atmospheric river

When is the Winter Solstice, the shortest day and longest night of the year?

Why snow squalls are so tough to forecast

Solar storm impact may spark bright auroras across Canada tonight

Sunlight begins its quiet comeback across Canada sooner than you'd think

Rare hurricanes can form during the wintertime

NASA rover hears tiny crackles of thunder and lightning on Mars

Look up! The Full Cold Supermoon shines highest in the sky this week

Northern Lights may shine in the sky over Canada Wednesday night

Science behind the weather: The infamous nor'easter

Meteor showers and a supermoon light up our December skies

Meteorological winter begins today! Why? It's all about the science!

Solar radiation may impact flight controls, prompting urgent Airbus recall

Plow driver's unexpected kind deed caught on camera

Woman diagnosed with rare allergy to cold temperatures

Edmonton roads turn into a winter nightmare

See the auroras light up the night sky during intense geomagnetic storm

Whiteout conditions trigger 100-vehicle crash in Michigan

Two metres of snow buries town, its heaviest snowfall in 30 years

Extreme cold prompts 'exploding tree' warnings

‘Destructive’ ice storm, snowfall threatens millions across U.S.

Big storm threatens widespread disruptions; U.S. airlines issue travel waivers

Extreme cold targets Canada as the polar vortex buckles

Record snowfall in Russian far east sows fun, frustration and massive drifts

The world is officially in its water bankruptcy era

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