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Why cats can’t resist (even a phony) box

Twitter has been blowing up with posts on cats’ attraction to taped squares on the ground. An animal behavior expert explains what draws Fluffy to the #CatSquare.

Happy World Penguin Day

Antarctica has 12 million penguins and 5 penguin species, according to a new report released today. But at least 2 penguin species have recently and significantly declined.

Favorite photos for Earth Day 2017

Here’s a collection of lovely, gorgeous, and wonderful photos from the EarthSky community in celebration of our favorite planet. Thank you all!

What is a glory?

People traveling in airplanes often see glories. The sun has to be behind your head. You’ll see the plane’s shadow cast on a cloud, surrounded by a halo of light.

Growing crack in Larsen-C ice shelf

The European Space Agency is monitoring the progress of the crack in Antarctica’s Larsen-C ice shelf. The crack is eventually expected to produce a massive iceberg.

Lake Baikal: Earth’s deepest, oldest lake

Controversy surrounds construction of hydropower stations on a river that feeds deep, ancient Lake Baikal.

New global map of Earth at night

First new global map of Earth at night since 2012, dubbed Black Marble. It shows city lights, boats on the water, how people follow geography, population patterns and more.

More ways sun storms can disrupt things

Scientists are learning more about the way storms on the sun can disrupt our communications satellites and ground-based electric grids.

Why are rainbows curved?

A rainbow isn’t a flat two-dimensional image on the dome of sky. It’s more like a mosaic, composed of many separate bits … in three dimensions.

California superbloom from space

Thanks to years of drought followed by above-average rainfall, California is enjoying a fantastic wildflower superbloom in 2017. See before-and-after space images here.

Southern lights over South Pole

Hunter Davis sent these photos from Antarctica this morning of the aurora australis – or southern lights – now appearing over Earth’s South Pole.

Today in science: Bingham Canyon landslide

On April 10, 2013, one of the largest non-volcanic landslides in the history of North America took place at the Bingham Canyon mine in Utah.

New ideas on dinosaur evolution

Basic facts that paleontologists thought they’d known for 130 years – about dinosaurs’ family trees – might turn out to be wrong.

Rescuing 11 elephants from a mud hole

Asian elephants got stuck in a mud-filled old bomb crater in Cambodia. A collaborative rescue effort saved them all.

Red ring of light over Eastern Europe

The enormous ring of light that appeared in the night sky on April 2 – above a thunderstorm in the Czech Republic – was a rare and fleeting lightning phenomenon.

Use zip code to attract birds to your yard

Audubon website lets you enter your zip code to see a list of the best bird-friendly plants for your yard. Plus a free app to identify the birds you see.

2017 California desert superbloom

After 5 years of exceptional drought, California deserts have exploded with “superblooms” of wildflowers following the wet winter.

Male Emperor penguins are good dads

In fact, they’re one of nature’s best animal dads. This month – autumn in Antarctica – their breeding cycle begins. But there’s still a long winter ahead.

April 3 is John Burroughs’ birthday

John Burroughs – born in 1837 – was one of the first nature writers. He was the first to say, “I go to nature to be soothed and healed, and to have my senses put in order.”

How flocking birds move in unison

Don’t miss this video! And learn how birds in flocks perform their wonderful, graceful movements. Hint: they don’t just follow a leader, or their neighbors.