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Posts by
EarthSky Voices
Can supervolcanoes cause a major cooling?
It was long thought supervolcanoes could cause eruptions that could blot out sunlight and result in major cooling on Earth. A new study says not so fast.
March 5, 2024
Where does lightning strike in the US? See maps
The Gulf Coast is one of the lightning hot spots in the United States. See where the other active areas are in these new maps.
March 3, 2024
Why do we need a leap year? And happy February 29!
Every 4 years is a leap year. So 2024 has a leap day, February 29. But why? Julius Caesar presented a solar calendar to keep the seasons in line.
February 29, 2024
Lost bird rediscovered in African mountain range
During an expedition into mountains in Africa, researchers rediscovered a 'lost bird' - a yellow-crested helmetshrike - that had not been seen in decades.
February 27, 2024
Did passing stars change Earth’s orbit?
We long suspected that passing stars are what send distant comets sunward. But could passing stars also change Earth's orbit? A recent study says yes.
February 26, 2024
How astronauts to Mars can manage stress on the long journey
Astronauts headed to Mars will live and work in confinement for more than two years. Here are ways to manage these stressful conditions.
February 26, 2024
Cumulus clouds disappear quickly during a solar eclipse
New research out of the Netherlands says that cumulus clouds disappear quickly during a solar eclipse as air temperatures drop. Good news for eclipse chasers!
February 25, 2024
Star clouds in the Milky Way are doing the wave
Star clouds peppered with stellar nurseries form a huge, wave-like structure in the Local Arm of our galaxy. And now astronomers discovered its doing the wave.
February 25, 2024
Are we poised to understand fast radio bursts?
Will we soon understand fast radio bursts? Two NASA X-ray telescopes recently observed one shortly before and after it occurred. Magnetars could be the bursts' source.
February 19, 2024
‘String of pearls’ star clusters form when galaxies collide
This beautiful galaxy is one of many that Hubble has observed showing a 'string of pearls.' When galaxies collide, it forms star clusters in the tidal tails.
February 17, 2024
