Contrails are not smoke but rather millions of tiny ice crystals formed when hot, moist jet engine exhaust freezes instantly upon contact with the extremely cold air at high altitudes (around 30,000 feet, where temperatures can reach -40°C). The duration of contrails can predict weather conditions: short contrails that disappear quickly indicate dry air and clear skies ahead, while long contrails that persist suggest high humidity and approaching rain.
Deep Dive
Prerequisite Knowledge
- No data available.
Where to go next
- No data available.
Deep Dive
You’ve Seen Contrails Wrong This Whole Time #aviation #airplane #contrailsAdded:
Ever looked up and noticed white [music] lines stretched across the sky?
That's not smoke.
And what it actually is will surprise you.
Jet engines burn fuel at extremely high temperatures. That creates hot, wet exhaust.
But up at 30,000 ft, the air is freezing cold, sometimes minus 40°.
The moment that hot exhaust hits the cold air, the moisture freezes instantly.
Those white lines? Millions of tiny ice crystals.
Not smoke, not chemicals, just ice.
Here's the wild part.
Contrails can actually [music] predict the weather.
Short ones that disappear fast?
Dry air, clear skies ahead.
Long ones that stick around?
Humidity is [music] high.
Rain is coming.
Follow for more aviation facts you probably [music] never knew.
Related Videos
Is dark matter real? - Why can't we find it? - physicist explains | Don Lincoln and Lex Fridman
LexClips
1K views•2026-05-30
Saptarshi Basu - Spectacular Voyage of Droplets: A Multiscale Journey to Extreme Flow Conditions
DAlembert-SU-CNRS
152 views•2026-06-02
A 6.0 Just Hit Hawaii — And It Came From The Wrong Place
TerraWatchHQ
115 views•2026-06-03
The Split-Second Mistake That Made Bouncing Bettys So Deadly
NoMansLandChannel
253 views•2026-06-02
Nobody Expected This Lava Reaction 🤯 #faits #facts
TendzDora
28K views•2026-05-30
The Difference In Charged And Neutral Particles
heavybrainspace
959 views•2026-05-29
The Silent Memory of Glass
UnchartedScienceworld
146 views•2026-05-30
A380 vs Every Vehicles Crash Test Challenge | Which One Win?
BeamLap
163 views•2026-05-29











