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.
See it! December’s full supermoon
December's full supermoon was the closest and brightest full moon of 2017. Wonderful photos here from the EarthSky community around the world.
December 4, 2017
Voyager 1 fires thrusters after 37 years
Now, the Voyager team is able to use a set of 4 backup thrusters, dormant since 1980. The team says it'll extend the life of Voyager 1 - the fastest and farthest craft from Earth - by several more years.
December 4, 2017
What would Earth be like with no moon?
Earth without its moon would be a very different world indeed. No eclipses. Smaller tides. But the biggest change would be in the length of Earth's day.
December 3, 2017
Land of Terror
This looks like an abstract painting, but it's a satellite image of the Tanezrouft Basin, a part of the Sahara Desert in central Algeria known as the Land of Terror.
December 3, 2017
Full supermoon on December 3
The December 3, 2017 full moon is 2017's only supermoon. The two full moons in January 2018 - on January 2 and 31 - will also count as supermoons.
December 3, 2017
Supermassive black holes photobomb Andromeda galaxy
Astronomers thought J0045+41 was 2 orbiting stars, part of the nearby Andromeda galaxy. New work shows it's 1,000 times more distant, possibly the most tightly coupled pair of supermassive black holes yet seen.
December 2, 2017
Lunar halo and clouds over Tucson
An example of pareidolia ... in this case, the moon, a halo and clouds looking like the moon rocketing into a halo!
December 2, 2017
December 2 moon is nearly full
It's called a Long Night Moon because our nights are long now, and because this moon takes a high path across the sky. In the Southern Hemisphere ... Short Night Moon!
December 2, 2017
Bright moon and aurora borealis
Does a bright moon means you can't see the northern lights? No. Here's awesome proof that, for photographers at least, moonlight can enhance the view.
December 1, 2017
Moon and Aldebaran in early December
Starting this evening, on December 1, and for the next few days, see if you can spot the star Aldebaran in the moon's glare.
December 1, 2017
