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Deep partial lunar eclipse November 18-19: Great for North America
A partial lunar eclipse occurs on November 19, 2021. It will reach the Americas, North Europe, eastern Asia, Australia, and the Pacific.
November 18, 2021
November 2021 partial lunar eclipse longest for 1,000 years
The partial lunar eclipse on November 19, 2021, will be the longest since the 15th century, around the time Machu Picchu was being built.
November 18, 2021
The enduring mystique of Barnard’s Star
Sometimes called Barnard's Runaway Star, it's one of the best known stars in the history of astronomy and in popular culture.
November 14, 2021
Heads up! Famous comet 67P/C-G nearly closest
Famous comet 67P/C-G will sweep closest to Earth in November. Finder charts help you locate this comet before it leaves for another 193 years.
October 26, 2021
Mercury greatest elongation September 14, best for S. Hemisphere
Watch for Mercury from Southern Hemisphere locations in late August, through September, 2021. Meanwhile, from northerly latitudes, bring binoculars!
September 13, 2021
Farthest quarter moon on August 30
In August 2021, the year's farthest quarter moon occurs as the moon reaches last quarter and closest lunar apogee at nearly the same time.
August 28, 2021
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
