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Updates on your cosmos and world
Best Places to Stargaze
EarthSky Community Photos
Clusters Nebulae Galaxies
Favorite Star Patterns
Comet C/2017 K2 moves into southern skies
September 23, 2022
2022 September equinox: All you need to know
September 22, 2022
Jupiter at opposition soon, closest in 70 years
September 21, 2022
Best Places to Stargaze
View Community Photos
Submit a Photo
What is the electromagnetic spectrum?
The light our eyes can detect is only a sliver of the light out there. The electromagnetic spectrum describes all the wavelengths of light, seen and unseen.
July 8, 2022
July 8 … 99% of the world’s population in sunlight simultaneously?
Fact-checkers at timeanddate.com discovered it's technically true that 99% of the world's population experiences sunlight at 11:15 UTC on July 8.
July 6, 2022
M6 and M7 in the Scorpion’s Tail
M6 and M7 are star clusters near Scorpius’ stinger. But you’ll need a dark sky to see these faint but stunning stellar aggregations.
July 2, 2022
Ozone layer damage due to rocket launches?
A new study by NOAA says that with the increase in rocket launches over the next 20 years, the soot emitted from these launches could damage the ozone layer.
June 29, 2022
Better ice tower reservoirs for farming
Automation can build bigger and better ice tower reservoirs that use less water and last longer for farming use in dry, high-altitude locations.
June 26, 2022
Speedy pulsar blazing through Milky Way
Astronomers compared images taken 10 years apart to learn that a speedy pulsar inhabits a known supernova remnant.
June 24, 2022
Top 10 space objects to see during the day
Love astronomy, but don't like to stay up late? Here are the top 10 space objects you can see - under the right conditions - during the day.
June 23, 2022
Sally Ride: 1st American woman in space
Sally Ride was the 1st American woman to go to space, flying on the STS-7 space shuttle Challenger mission in 1983, and later on another mission in 1984.
Paul Scott Anderson
June 16, 2022
Rivers can suddenly change course, study says
Studying rivers from space using satellite imagery helps scientists see how rivers can suddenly change course, bringing the risk of flooding to communities.
June 9, 2022
A word about Earth’s water cycle
Earth's water cycle is vital to life. Although the amount of water on Earth is fixed, it continually cycles between the oceans, atmosphere and land.
June 8, 2022
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