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Posts by
EarthSky Voices
Snow algae thrives in extreme conditions
On tall ice structures high in the Chilean Andes, researchers found algae growing on snow. They don’t entirely understand how the algae are able to bloom.
August 19, 2019
A brief history of Saturn’s amazing rings
New analyses of Saturn's rings reveal how and when they were made, from what, and whether they'll last.
August 19, 2019
A big earthquake in the US Pacific Northwest?
Most people don’t associate the US Pacific Northwest with earthquakes, but maybe they should. It’s home to the 600-mile (1,000-km) Cascadia megathrust fault, stretching from northern California to Canada’s Vancouver Island.
August 5, 2019
How fireflies glow and what signals they’re sending
Are the gentle blinks of fireflies flashing a favorite part of your summer evenings? An entomologist explains some lightning bug basics.
July 29, 2019
Why do birds sing?
Birds spend a lot of time and energy singing, but they don't do it the same way in every season of the year. And some can't sing at all. What's the purpose of birdsong?
July 25, 2019
Planting a flag on the moon
With virtually no atmosphere on the moon - and, therefore, no wind - flags that fly freely on Earth would hang like limp cloth in the lunar environment. So Apollo 11 engineers had to rethink flagpole design entirely.
July 19, 2019
5 moon-landing innovations that changed life on Earth
The technologies behind weather forecasting, GPS and even smartphones can trace their origins to the race to the moon.
July 19, 2019
What will Earth’s next supercontinent look like?
Here are 4 different scenarios of what planet Earth might look like when the next supercontinent forms.
July 18, 2019
Eclipses make animals do strange things
How do solar and lunar eclipses influence animal behavior? While the human world gathers to see tonight's lunar eclipse, what's the rest of nature doing?
July 15, 2019
Himalayan glaciers melting double fast since 2000
A new study, which used declassified images from spy satellites, shows that glaciers in the Himalayas melted twice as fast from 2000 to 2016 as they did from 1975 to 2000.
July 11, 2019
