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Eleanor Imster

Eleanor Imster

Eleanor Imster has helped write and edit EarthSky since 1995. She was an integral part of the award-winning EarthSky radio series almost since it began until it ended in 2013. Today, as Lead Editor at EarthSky.org, she helps present the science and nature stories and photos you enjoy. She also serves as one of the voices of EarthSky on social media platforms including Facebook, Twitter and G+. She and her husband live in Tennessee and have two grown sons.

International team discovers 3 new species of flying reptiles

Posted by in Earth | 6 days ago
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The new fossil discoveries provide clues about flying, spike-toothed reptiles that lived in the Sahara 100 million years ago.

Was this the ancestor of all animals?

Posted by in Earth | 1 week ago
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Geologists say the worm-like creature – about the size of a grain of rice – is the 1st ancestor on the family tree that contains most animals today, including humans.

Watch 2 penguins explore closed Chicago aquarium

Posted by in Earth | Human World | 3 weeks ago
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You’ll love this video of a couple of penguins openly exploring Chicago’s Shedd Aquarium, closed due to COVID-19.

Explore the universe from home

Posted by in Human World | 3 weeks ago
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Explore NASA’s online activities, e-books, podcasts and other content.
Blue ball with white swirls.

And now, a word from Juno at Jupiter

Posted by and in Space | Today's Image | 1 month ago
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Juno arrived at Jupiter in 2016. It’s in a 53-day orbit around the planet. Close sweeps past the planet are called “perijoves” (peri means “near”). Here are some spectacular images from the most recent sweep, Perijove 25, in February.

Curiosity rover on Mars snags highest-resolution panorama yet

Posted by in Space | Today's Image | 1 month ago
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This just in … a new super-cool composite from Curiosity on Mars. The panorama contains more than 1,000 images taken last Thanksgiving and assembled over the past few months … 1.8 billion new pixels of Martian landscape!

a birg dinosaur and 3 smaller dinosaurs.

Eggshells support idea that dinosaurs were warm-blooded

Posted by in Earth | 1 month ago
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Were dinosaurs warm-blooded or cold-blooded? According to a new study that analyzed the chemistry of dinosaur eggshells, the answer is “warm.”

Want to be an astronaut? Apply now!

Posted by in Human World | 1 month ago
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For the first time in more than 4 years, NASA is now accepting applications for future astronauts. Aspiring moon to Mars explorers have until March 31 to apply.
Magenta and blue splotches on a black background.

Astronomers detect biggest explosion in history of universe

Posted by in Space | 1 month ago
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Scientists studying a distant galaxy cluster have discovered the biggest explosion seen in the universe since the Big Bang.

White blobs on a dark shiny background.

Arctic ice melt changing major ocean current

Posted by in Earth | 2 months ago
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A major ocean current in the Arctic is faster and more turbulent as a result of rapid sea ice melt, according to a new study.