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Best Milky Way pics of 2021
Capture the Atlas announced its 2021 Milky Way Photographer of the Year. This annual edition showcases 25 of the best Milky Way photos from around the world.
August 27, 2021
Unexpected Perseid outburst floods cameras, wows viewers
Unexpected Perseid outburst on August 14, 2021. Automatic all-sky cameras caught it, and observers in Wyoming, USA and Ontario, Canada made visual observations.
August 22, 2021
2021’s closest planetary conjunction is August 19
2021’s closest planetary conjunction favors Southern Hemisphere The closest conjunction of two planets for 2021 happens on August 19 at...
August 18, 2021
Transits of Jupiter’s moons ahead: A triple!
Observers using a good pair of binoculars or a small telescope can see events called transits on Jupiter, when a moon or its shadow passes in front of the giant planet.
July 30, 2021
Find Perseid and Delta Aquariid radiant points
Every late July and August, two excellent meteor showers overlap. Here's how to find the Perseid and Delta Aquariid radiant points.
July 26, 2021
The late June evening sky is rich
Here are charts showing the late June evening sky in 2021, from master chartmaker Guy Ottewell. One looks west after sunset. One looks from above.
June 23, 2021
Summer solstice tale of 2 cities
On the June solstice, the sun will set at the same time in New York City and St. Augustine, Florida. But New York will have an hour more of daylight. Why?
June 19, 2021
What is a magnetar?
A magnetar is a strange and rare neutron star, generating almost incomprehensible amounts of energy that can be detected across the universe. How?
June 13, 2021
May-June 2021: A special pair of eclipses
The upcoming eclipse season - featuring a total eclipse of the moon in late May 2021 and an annular or ring eclipse of the sun in early June - is unusual for featuring a short lunar eclipse and relatively long solar eclipse. Here's how to understand it in the context of 1,000 years of eclipses.
May 19, 2021
When is the next tide? Recommended almanacs here
The EarthSky-recommended tide almanacs listed here are based on astronomical influences on the tides. They'll help you in finding the next high and low tides.
April 25, 2021
