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.
2017 sky optics, Hong Kong
Even if you stay in one location - and a major city to boot - it's amazing what you can see just by looking up.
December 27, 2017
Red kite
Graham Telford captured this image of a red kite on a cold December morning in Towton in Yorkshire, England.
December 26, 2017
X-ray image shows newly born elements
The elements that make up our bodies and everything around us are born inside stars. This new X-ray image shows them being released into space.
December 24, 2017
SpaceX launch wowed many, scared some, in SoCal
SpaceX Falcon 9 launch created an eerie display in the night sky over southern California on the night of December 22. Photos and video here.
December 23, 2017
Halo and sundogs over Montana
Ski resorts are the best places to see fine halo displays, like this one. Why so beautiful and why so sparkly? Details here.
December 21, 2017
Big Dipper over Murrieta, California
The Big Dipper is low in the sky in the evening hours at this time of year. But you can see it after midnight. Janet Aviles caught it earlier this week, ascending in the northeast.
December 20, 2017
Double green flash
Green flashes are best seen over ocean horizons like this one, and, this time, the California wildfires did something helpful.
December 19, 2017
Gaia’s view of Large Magellanic Cloud
The Large Magellanic Cloud (LMC), one of the nearest galaxies to our Milky Way, as viewed by ESA's Gaia satellite after its first 14 months of operations.
December 16, 2017
