Earth’s atmosphere extends beyond moon

In fact, these researchers said, the moon flies through Earth’s outermost atmosphere, called its geocorona.

The ozone hole: Closing the gap

After thinning at alarming rates in the 1980s and 90s, the ozone layer over Antarctica is starting to recover.

Tides, and the pull of the moon and sun

Expect higher-than-usual tides a day or two after the February 19, 2019, full supermoon.

NOAA announces the arrival of El Niño

This year’s El Niño is likely to be weak, with little influence on weather through early spring, say NOAA forecasters.

Ancient spider fossils have reflective eyes

A remarkable set of fossil spiders found in South Korea display reflective eyes.

Ships in a harbor, cloud trail overhead.

From Chelyabinsk to Cuba: The meteor connection

The scientific team that used YouTube videos to determine the trajectory of the Chelyabinsk meteor used the same method to track the trajectory of the bright meteor that crossed the sky over Cuba on February 1.

5 things about radiation donuts, in 2 minutes

Did you know that our planet has radiation donuts? These giant, donut-shaped clouds of radiation are called the Van Allen Belts.

How animals love

“The animal world tells us again and again and again that love is really important.”

Another huge impact crater under Greenland ice?

A glaciologist has discovered a possible 2nd impact crater buried under more than a mile of ice in northwest Greenland.

Flying squirrels go pink in ultraviolet

A researcher using a UV flashlight to see whether some backyard frogs glow in the dark (they didn’t) happened to turn his light on a flying squirrel landing on a nearby bird feeder. He was met with a bright neon pink reflection.