Sign Up for Our Amazing Newsletter!
A daily update by email. Science news, great photos, sky alerts.
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
Milky Way and zodiacal light
Which one looks brighter to you? One is the combined light of many stars. The other is the light of our own star, the sun, reflecting on grains of dust.
April 3, 2017
Seahorse aurora
Seeing a seahorse shape in the shifting light of an aurora is an example of "pareidolia."
April 1, 2017
Sun halo over snowy Cape Breton Island
Winter still lingers on Cape Breton Island, Canada. Photo by Kris Tynski.
March 30, 2017
March 28 very young moon
It's rare to see a moon less than 24 hours old, that is, 24 hours past the new phase. But North America had a shot at a younger moon on the night of March 28.
March 29, 2017
Orion from the Southern Hemisphere
See the 3 stars of Orion's Belt in the upper right of this photo? The large, reddish cloud-like region on the lower left is the Gum Nebula.
March 28, 2017
Snow geese
Marcia White Bower captured migrating snow geese in central New York on March 19.
March 27, 2017
Colors of scintillating Venus
Venus reaches inferior conjunction today, officially leaving the evening sky. It has been low in the sky, where Earth's atmosphere has caused Venus to scintillate, or twinkle, in many colors.
March 25, 2017
Perfect airplane glory
You might catch an airplane glory when a mist or cloud lies below you, with the sun shining upon it.
March 24, 2017
Chaco Canyon, New Mexico
Ancient structures in a desolate area of land in surrounded by a Navajo reservation. Around 1,000 years ago, the architects of this place walked away.
March 23, 2017
Green flash at sunset
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.
March 22, 2017
