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Editors of EarthSky

Polar change in Arctic measured by ICE Bridge

The NASA ICE Bridge mission shifts north, from Antarctica to the Arctic. Read more about measuring polar change with satellites here.

How do ants walk upside down?

How do ants walk upside down? They stroll across the underside of branches and roam over ceilings. Their secret is in their feet. Read more here.

What is the smelliest substance in existence?

Skunk's spray, rotting meat, bad breath, and swamp water all have something chemically in common. Read more about the smelliest substance in existence.

How does a chameleon change colors?

We humans have the ability to hide emotions, but chameleons wear their hearts on their sleeves. Read more why a chameleon changes its colors.

How does snow form inside clouds?

Certain minerals suspended in clouds can act as the core of a fledgling snow crystal.

How does your remote control work?

With the punch of a button, your remote sends a different flashing light message, much like Morse code, for each job you want done.

Earthquake early warning system for California?

Dr. Allen talked to EarthSky about how an earthquake early warning system could work in California. Read more about the possibility for this system here.

Going bald is an inherited trait

Baldness is a genetically-inherited trait. A bald head might have been a signal of a good mate early humans. So going bald may be a neutral trait.

Jay Zwally: Greenland ice loss is canary in coal mine

"Even if there is no additional climate warming," said Jay Zwally, "sea level will continue to rise, about 16 inches over the next hundred years."

Alan Stern: ‘A Chihuahua is still a dog, and Pluto is still a planet’

"Our whole view of the solar system turned upside in the 1990s when we discovered other Pluto-like planets. It's Earth that's the misfit," says Alan Stern.