Check out this dramatic video of a glacier calving in Antarctica. And read about how scientists' measurements revealed what was happening under the water.

Deborah Byrd

November 30, 2022

Mauna Loa volcano: No evac orders, but residents on alert

Mauna Loa volcano in Hawaii is erupting for the 1st time in 38 years. As of this morning, the Hawaiian Volcano Observatory reports "no property is at risk."

Deborah Byrd

November 29, 2022

Visible planets and night sky December 2022

In December, the morning planet is Mars. In the evening, all five bright planets are visible, with Venus and Mercury climbing higher in the evening twilight.

Marcy Curran

John Jardine Goss

Deborah Byrd

November 29, 2022

Tides, and the pull of the moon and sun

Expect higher-than-usual tides for a few days following the November 23, 2022, new supermoon, and the 4 more new supermoons through March, 2023.

Deborah Byrd

November 23, 2022

Earth’s shadow: When can you see it?

Like all worlds orbiting suns, our planet Earth casts a shadow. Here are some times to look for it Earth's shadow and the Belt of Venus.

Deborah Byrd

November 20, 2022

What is the Brocken Spectre? A misty figure in the fog

The Brocken Spectre is your own shadow cast on mists below you from high on a mountain. The shadow may appear enormous and has a rainbow ring around it.

Deborah Byrd

November 18, 2022

A runaway star moves fast in an unusual direction

Stars in our Milky Way galaxy move in a more or less orderly way. But a star that moves differently from the general stream of stars is known as a runaway star.

Deborah Byrd

November 18, 2022

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Deborah Byrd

Deborah Byrd created the EarthSky radio series in 1991 and founded EarthSky.org in 1994. Today, she serves as Editor-in-Chief of this website. She has won a galaxy of awards from the broadcasting and science communities, including having an asteroid named 3505 Byrd in her honor. A science communicator and educator since 1976, Byrd believes in science as a force for good in the world and a vital tool for the 21st century. "Being an EarthSky editor is like hosting a big global party for cool nature-lovers," she says.