What's a globular cluster? The Milky Way has about 150
The Hubble Space Telescope captured this close-up, off-center image of the globular cluster M5 in 2015. Image via HST/ NASA/ ESA/ APOD.| EarthSky
The Hubble Space Telescope captured this close-up, off-center image of the globular cluster M5 in 2015. Image via HST/ NASA/ ESA/ APOD.| EarthSky
The large yellow shell depicts a light-year; the smaller yellow shell depicts a light-month. Read more about this image at Wikimedia Commons.Help! EarthSky needs your support to continue. Our yearly crowd-funding campaign is going on now. Donate here.| EarthSky
Sagittarius the Archer has a Teapot shape and is the constellation of the zodiac that contains the center of the Milky Way. If you live far enough south, you may spot the arcing shape of Corona Australis below Sagittarius. Image via EarthSky.If you’re outside on an August or September evening, you can glimpse the zodiacal constellation Sagittarius the Archer. From our northerly latitudes, it never climbs high in the sky. Yet when you’re looking toward Sagittarius, you’re looking in the ...| EarthSky
Gaia is an ambitious mission to chart a three-dimensional map of our Galaxy, the Milky Way, in the process revealing the composition, formation and evolution of the Galaxy. Gaia will provide unprecedented positional and radial velocity measurements with the accuracies needed to produce a stereoscopic and kinematic census of about one billion stars in our Galaxy and throughout the Local Group. This amounts to about 1 per cent of the Galactic stellar population.| sci.esa.int
A beautiful red aurora australis – or southern lights – on the horizon, captured on January 19, 2013 by EarthSky friend Colin Legg at Wilson’s Promontory in southernmost Australia. You can also see the Large and Small Magellanic Clouds in this photo alongside the edgewise view into our Milky Way galaxy. The blue in the water is bioluminescence. Thank you, Colin!The Magellanic Clouds from the Southern Hemisphere| EarthSky
A unique and beautiful poster-sized calendar. Keep up with all phases of the moon every night of the year! Check out our article! How to use EarthSky’s lunar calendar 16" (W) x 36.5" (H) New and full moons indicated in Universal Time "This is the most unique calendar I've ever owned." – Greg R. "Thank you EarthSky for| The EarthSky Store
