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Today in science: A moon for Mars

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?

Say hello to the death’s-head hawkmoth

It’s the insect star of The Silence of the Lambs.

Lifeform of the week: Sea stars

You call them starfish? They’re brilliant by any name.

Watch wind flowing across US in real time

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!

Many fish evolved to survive on land

“A fish out of water might seem an extraordinary thing, but in fact it is quite a common phenomenon,” said these researchers.

Check out these mammatus clouds

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.

Surprise! Some mantas are homebodies

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.

A Chinese perspective on summer

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.

The secrets of night-shining clouds

People at high latitudes are seeing glowing clouds in a dark night sky. They’re called noctilucent or “night-shining” clouds.

Ice ages, and ice at Mars’ polar cap

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.