Sign Up for Our Amazing Newsletter!
A daily update by email. Science news, great photos, sky alerts.
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
Posts by
Eleanor Imster
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.
February 21, 2019
See it! Photos of 2019’s biggest supermoon
A selection of photos of the February 18 and 19 full moon - biggest and brightest supermoon of 2019 - from the EarthSky Community.
February 20, 2019
Where is the universe’s missing matter?
When astronomers add up the mass of all the normal matter in the present-day universe, about a third of it can't be found. Where is it?
February 20, 2019
Watch: Aurora borealis over HAARP
Never-before-seen footage of night skies over the HAARP antenna array in remote northern Alaska.
February 20, 2019
Ancient spider fossils have reflective eyes
A remarkable set of fossil spiders found in South Korea display reflective eyes.
February 16, 2019
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.
February 15, 2019
How animals love
“The animal world tells us again and again and again that love is really important.”
February 14, 2019
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.
February 13, 2019
Mars and Uranus
Eliot Herman captured the conjunction of Mars and Uranus on February 11, 2019, in the night sky over Tucson, Arizona. Note the color contrast between red Mars and blue Uranus.
February 13, 2019
