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Hole-punch clouds over SoCal
Hole-punch clouds result from a combination of cold temperatures, air traffic, and atmospheric instability. Conditions were ripe for making them over southern California last weekend.
January 25, 2017
See all 5 bright planets tonight
The parade of 5 bright planets visible in Earth's sky tonight will conclude with the moon and Mercury rising as darkness ebbs into dawn Wednesday morning.
January 24, 2017
New Earth images from GOES-16
The satellite's 1st images since its launch a few months ago. GOES-16 provides 4 times the image resolution - 4 times more detail - than earlier GOES satellites. Weather forecasters are excited!
January 23, 2017
What’s killing these galaxies?
It’s an astrophysical whodunnit. Across the universe, galaxies are being killed. Scientists want to know, what’s killing them?
January 23, 2017
Don’t miss moon and Saturn January 24
The January 24, 2017 waning crescent moon will be very near Saturn. Look east before dawn. And don't be surprised if you spot Mercury, too!
January 23, 2017
Favorite photos from this weekend
The EarthSky community on Facebook outdid itself posting photos over the weekend of January 20-22, 2017. Thanks, everybody! Editors' picks here.
January 22, 2017
Waning moon in sunrise colors
Jüri Voit captured this photo Saturday morning - January 21, 2017 - in Kuusalu, Estonia.
January 22, 2017
Moon, Antares, Saturn January 23-25
Given clear skies, it should be easy to use the waning crescent moon to locate the star Antares and planet Saturn before dawn’s first light on January 23.
January 22, 2017
$40 billion a day for solar super-storms
The probability of another event like the 1859 Carrington event is - at any given time - low. But many believe it's "almost inevitable" one will occur, eventually. A new study explores the risks.
January 20, 2017
