Which is brighter – Perseid fireballs or a supermoon? You’ll find out this August as the year’s biggest, brightest full moon arrives at the peak of the Perseid meteor shower.
Posts by EarthSky
Dark matter makes up 90% of the matter in both systems, the study finds.
Scutum has just four noticeable stars, and even those require a dark sky. Look for it now before the moon gets too bright, and be sure to scan with your binoculars.
It’s always a good hair day for a hairy pink squat lobster (Lauriea siagiani). These little guys live on sponges in the western Indo-Pacific.
A newly-discovered species suggests that feathers were much more common among dinosaurs than once thought.
Maybe some extra-terrestrials pollute their planets too.
Some mammals – dogs, monkeys dolphins – do show facial expressions akin to human smiles. But in sharks and other fish, the parts of the brain related to feelings are much less developed.
The Andromeda galaxy is approaching our Milky Way galaxy across the vastness of space. When will they collide?
The last below-average global temperature for June was in 1976 and the last below-average global temperature for any month was February 1985.
Twilight is the time of day between daylight and darkness. Astronomers, the experts on nighttime, recognize three kinds of twilight.