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Updates on your cosmos and world
Best Places to Stargaze
EarthSky Community Photos
Clusters Nebulae Galaxies
Favorite Star Patterns
Moon sweeps near Regulus June 15 and 16
June 15, 2021
All you need to know: June solstice 2021
June 14, 2021
What is a magnetar?
June 13, 2021
Best Places to Stargaze
View Community Photos
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What Proxima’s massive flare means for our chances of alien neighbors
In May 2019, astronomers measured the largest flare ever from Proxima Centauri, the closest star to our sun. What do such flares mean for possible alien life, on a planet in the Proxima Centauri system, only 4 light-years away?
May 4, 2021
Expect flooding from this week’s supermoon, but know a lunar cycle masks effects of sea level rise
The April 2021 supermoon and the lunar nodal cycle, explained.
April 26, 2021
How many Tyrannosaurus rex lived on Earth?
During 2.4 million years of existence, a total of 2.5 billion
lived on Earth, and 20,000 individual animals would have been alive at any moment, according to new calculations.
April 20, 2021
A case against killing spiders
An entomologist explains why it's a good idea to be nice to the spiders you encounter and consider a live-and-let-live policy.
April 18, 2021
Sea level rise creating ghost forests in U.S. East
Sea level rise is killing trees along the U.S. east coast, creating ‘ghost forests’ that are visible from space.
April 15, 2021
5 ways fish are like you and me
Fish are more like humans than you might realize.
April 8, 2021
Did lightning strikes spark life on Earth?
Lightning strikes - perhaps a quintillion of them, occurring over a billion years - might have provided sparks of life for the early Earth by unlocking phosphorus, says new research.
March 30, 2021
Evidence of a brand new physics?
Physicists at the LHCb Collaboration at CERN have found particles not behaving the way they should according to the guiding theory of particle physics. Could it be evidence of a brand new physics?
March 28, 2021
How to make beneficial insects welcome in your garden
Ladybugs, lacewings, spiders, and bees can help your garden grow. How to help these beneficial insects.
March 26, 2021
How plants manage the shift from winter to spring
How plants tolerate cold spells, and the effects of climate change on how plants manage the transition from winter to spring.
March 21, 2021
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Members of the EarthSky community - including scientists, as well as science and nature writers from across the globe - weigh in on what's important to them. Photo by Robert Spurlock.
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