Boötes’ brightest cluster, NGC 5466
Back to Article List An ancient ball of stars, globular cluster NGC 5466 is visible in the early-morning…
The Sky Today on Saturday, January 24: Psyche makes its turn
Back to Article List Asteroid Psyche has switched from retrograde to prograde motion on the sky. You can…
Psyche moves north of Aldebaran
Back to Article List Asteroid 16 Psyche is easy to find this evening as it moves a less…
View the Keystone of Hercules
Back to Article List This famous asterism at the heart of the Strongman is visible in the early-morning…
The Sky This Week from Jan. 9 to 16: Jupiter at opposition
Jupiter looms large in this stunning map of the gas giant, comprised of Hubble Space Telescope data. Credit:…
The Sky Today on Sunday, January 4: The Winter Hexagon
Back to Article List A huge asterism is visible in the east, rising after sunset this evening. Trace…
The Sky Today on Friday, January 2: Harmonia at opposition
Back to Article List Asteroid Harmonia reaches opposition in Gemini the Twins, near the bright planet Jupiter in…
The evolution of solar imaging
Sunspots are active regions where the Sun’s magnetic field contorts itself into loops and arcs. Solar imaging captures…
The Super Moon and the Quadrantids
Back to Article List The Quadrantid meteor shower peaks amidst a Full Super Moon, but brighter fireballs might…
The Sky Today on Thursday, January 1: Follow Saturn to Neptune
Back to Article List Saturn and Neptune lie close together in the evening sky. Use the brighter ringed…
The Sky Today on Thursday, January 1: Follow Saturn to Neptune
Back to Article List Saturn and Neptune lie close together in the evening sky. Use the brighter ringed…
Io and its shadow cross Jupiter
Back to Article List Io follows its own shadow across Jupiter with only 20 minutes between them, highlighting…