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American astronomer Asaph Hall discovered Phobos, one of the two Martian moons, on this date in 1877. Did he imagine how well we’d see Mars’ moons today?
It’s the insect star of The Silence of the Lambs.
You call them starfish? They’re brilliant by any name.
The wind map updates every hour and lets you see the movement, flow, and speeds of wind across the United States. Go see it! It’s great!
“A fish out of water might seem an extraordinary thing, but in fact it is quite a common phenomenon,” said these researchers.
Mammatus clouds can appear ominous. But, in a way that’s so common in nature, their dangerous aspect goes hand in hand with a magnificent beauty.
Oceanic manta rays have long been thought to migrate great distances. But Indo-Pacific mantas, at least, are more local commuters than long-distance travelers.
In Chinese thought, summer has been associated with the color red, the sound of laughing, the heart organ, the fire element and a red phoenix bird.
People at high latitudes are seeing glowing clouds in a dark night sky. They’re called noctilucent or “night-shining” clouds.
Confirmation that Mars came out of its last ice age 400,000 years ago. Plus insights into the water cycle on Mars, a possible help to future space colonists.
Moon in Winter Circle April 19 to 21
See it! Moon sweeps past Venus