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Editors of EarthSky

Does a green sky predict a tornado is coming?

If you see a foreboding, green sky, it's best to take cover. A tornado might not be approaching, but green skies can be a sign of hail and other bad weather.

Is a solar flare the same thing as a CME?

Solar Cycle 25 is fairly active now, and that means more solar activity. So, what's the difference between a solar flare and a coronal mass ejection (CME)?

Active volcanoes on Venus found in Magellan data

Scientists have evidence for an active volcanic vent on a known Venus mountain. It's the first direct evidence of active volcanoes on Venus!

Another atmospheric river is slamming California

Another atmospheric river will slam California today, March 14, 2023, bringing dangerous rainfall amounts and additional flooding.

Atmospheric rivers now have intensity rankings

Scientists are pushing an intensity scale for atmospheric rivers, much like the hurricane intensity scale. They think it'll help keep people safer.

The science of kissing and why it’s good for you

Why does kissing feel good? Watch this video - the science of kissing - to learn why humans are drawn to puckering up and that it's good for you.

Why love really is a drug

On this Valentine's Day, watch a video about certain chemicals - including dopamine, oxytocin and vasopressin - making you feel good around someone you love.

Chuck Yeager – personification of the ‘right stuff’ – born 100 years ago

Chuck Yeager, a military test pilot, became the first to break the sound barrier on October 14, 1947. Afterwards, he was dubbed "the fastest man alive."

SWOT mission to survey Earth’s water

NASA's Surface Water and Ocean Topography - SWOT - satellite launched on December 16. It's an international mission to observe water on Earth's surface.

Are 2 snowflakes ever the same?

Many billions of snowflakes drift down to Earth's surface in the winter. Some are the lacy or star-type snowflakes. Others are what scientists call 'columns.'