The exoplanet HD 189733b demonstrates how extreme planetary conditions can create unique weather phenomena: its proximity to its star causes daytime temperatures of 2,000Β°F, which melts atmospheric silicate particles into liquid glass, and supersonic winds at seven times the speed of sound cause this molten glass to rain sideways at 5,400 mph, cooling into solid shards midair and turning the entire atmosphere into a supersonic sandblaster.
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Deep Dive
This Planet Rains Solid Glass At Mach 7 πͺAdded:
There's a beautiful deep blue planet where it rains solid [music] glass sideways at 5,400 mph.
From space, this [music] distant exoplanet looks exactly like Earth.
You would expect that calming blue color to come from peaceful oceans of water, but it is actually a deadly [music] optical illusion.
This world orbits so incredibly close to its star that daytime temperatures reach 2,000Β° [music] F.
This extreme heat melts silicate particles in the atmosphere, turning them into glowing drops of liquid glass.
And because the planet has winds blowing [music] at seven times the speed of sound, that molten glass does not fall straight down. It whips horizontally, cooling into jagged [music] solid shards midair.
It turns the entire atmosphere into a supersonic sandblaster, proving that in space, a beautiful blue marble [music] can actually be a planet-sized murder weapon.
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