EarthSky
today at 02:30. Facebook
Green flash at sunset [ Bit.ly Link ]

It's easiest to see a green flash with optical aid, but you have to be very careful not to look too soon, or you'll dazzle - or damage - your eyes.
Image via Mike Busch of GreatSouthBayImages.
EarthSky
yesterday at 23:21. Facebook
Venus after sunset and before sunrise! [ Bit.ly Link ]

Its now appearing in the west after sunset and in the east before sunrise.
EarthSky
yesterday at 17:28. Facebook
Star Epsilon Aurigae's light dims for a period of about 2 years in a 27-year cycle. It's last dimming was 2009-2011 [ Bit.ly Link ]
EarthSky
yesterday at 15:05. Facebook
Friday FAQ: What is stellar magnitude? [ Bit.ly Link ]
Brightest stars to the eye are 1st magnitude, dimmest stars are 6th magnitude
EarthSky
yesterday at 13:09. Facebook
Where's the moon? Waning crescent [ Bit.ly Link ] A waning crescent moon is sometimes called an old moon.
Photo: Karl Diefenderfer
EarthSky
yesterday at 02:30. Facebook
Photo of night sky over Chaco Canyon, New Mexico by Marc Toso! [ Bit.ly Link ] #ancientstructures #Navajoreservation #TodaysImage
EarthSky
03/23/2017 at 23:21. Facebook
Mars' closer moon Phobos might alternate between becoming a planetary ring and clumping together to form a moon. [ Bit.ly Link ]
EarthSky
03/23/2017 at 22:31. Facebook
Thanks for sharing with us!
EarthSky
03/23/2017 at 20:29. Facebook
Record low sea ice at both poles [ Bit.ly Link ] #video #NASA #Arctic #Antarctic
EarthSky
03/23/2017 at 17:28. Facebook
The planet Venus is now appearing in the west after sunset and in the east before sunrise!! [ Bit.ly Link ] Photo: Julie Stracener
EarthSky
03/23/2017 at 15:05. Facebook
Lenticular clouds over Nevada's Carson Valley by our friend Gary Swift! More UFO like lenticular cloud photos here: [ Bit.ly Link ]
EarthSky
03/23/2017 at 13:09. Facebook
How to find the open star cluster in the constellation Coma Berenices, or Berenices’ Hair! [ Bit.ly Link ] #Tonight #Leo
EarthSky
03/23/2017 at 12:44. Facebook
Wow!
EarthSky
03/23/2017 at 11:04. Facebook
From Norwood, NY, saw the crescent Venus through 10 x 50 binoculars one minute after sunset on March 22, and 9 minutes before sunrise on March 23. A double feature!

Simulation of Venus's phase via the US Naval Observatory
[ Usno.navy.mil Link ]
EarthSky
03/23/2017 at 02:30. Facebook
Astronomers have mapped a star's death spiral into a black hole [ Bit.ly Link ]
EarthSky
03/22/2017 at 23:21. Facebook
Beautiful solar halo over Sweden March 18 by Jörgen Norrland

#grayiswhereitsat
EarthSky
03/22/2017 at 20:29. Facebook
Sirius is our sky’s brightest star, but only because it's relatively nearby at 8.6 light-years away.
[ Bit.ly Link ]
EarthSky
03/22/2017 at 17:28. Facebook
It looked like the sun set twice [ Bit.ly Link ]
The illusion of a double sunset, captured by Peter Lowenstein
EarthSky
03/22/2017 at 15:05. Facebook
How a Venus flytrap knows to snap shut [ Bit.ly Link ]
EarthSky
03/22/2017 at 13:09. Facebook
This morning's waning crescent moon with subtle earthshine from Karl Diefenderfer in Quakertown, PA

Earthshine: [ Bit.ly Link ]