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…
Comet Schaumasse closes in on the Virgo Cluster
Back to Article List Visible in the early morning, Comet Schaumasse is entering a region rich with galaxies,…
Io and its shadow transit Jupiter
Back to Article List As Jupiter nears opposition, its moons closely follow their shadows during transits. Tonight, Io…
The Sky Today on Thursday, December 18: Mercury on the move
Back to Article List Challenge yourself to spot a 2-percent-lit crescent Moon as Mercury shows off its quick…
The Sky Today on Wednesday, December 17: The Moon meets Mercury
Back to Article List A lovely crescent Moon shares the predawn sky with bright planet Mercury, with the…
Mercury reaches greatest western elongationÂ
Back to Article List Planet Mercury is now a bright light in the predawn sky, reaching its greatest…
The Sky Today on Sunday, November 23: Spy the Silver Sliver
Back to Article List The Silver Sliver Galaxy is a lovely sight in Andromeda the Princess. View this…