The Sky Today on Saturday, June 20: Libra’s Ghost Cluster
Back to Article List The globular cluster NGC 5897 glows in Libra the Balance, a ghostly twin to…
The Sky Today on Monday, June 15: Mercury at greatest eastern elongation
Back to Article List Mercury lines up with Venus, Jupiter, and the Moon in the evening sky as…
The Sky Today on Sunday, June 14: Irene nears opposition
Back to Article List Asteroid Irene is nearly at at opposition and high in the south late tonight…
The Sky Today on Saturday, June 13: Catch Comet 220P/McNaught
Back to Article List Comet McNaught recently underwent a major brightening event and is now passing closest to…
The Sky Today on Sunday, May 24: Egeria slides on by
Back to Article List Main-belt asteroid Egeria is sliding past several stationary background stars tonight, offering a chance…
The Sky Today on Saturday, February 28: Orion stands tall
Back to Article List The constellation Orion the Hunter is visible in the south after sunset this evening,…
Europa takes a trek across Jupiter
Back to Article List The icy moon Europa transits Jupiter tonight, followed by its shadow. Now past opposition,…
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:…
Zoom in on the Perseus Cluster
Back to Article List Galaxy NGC 1275 is the brightest member of the Perseus Cluster, an excellent target…
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 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…
Ceres makes us see double
Back to Article List Dwarf planet Ceres passes close to a background star in Cetus tonight, creating a…