Massive Stars in NGC 6357
Massive stars lie within NGC 6357, an expansive emission nebula complex some 6,500 light-years away toward the tail […]
Astronomy
Dwarf Planet Ceres
Dwarf planet Ceres is the largest object in the Solar System’s main asteroid belt, with a diameter of […]
Galaxy Wars: M81 versus M82
In the lower left corner, surrounded by blue spiral arms, is spiral galaxy M81. In the upper right […]
Comet 67P from Spacecraft Rosetta
Spacecraft Rosetta continues to circle and map Comet Churyumov-Gerasimenko. Crossing the inner Solar System for ten years to […]
Find the Man in the Moon
Have you ever seen the Man on the Moon? This common question plays on the ability of humans […]
MWC 922: The Red Square Nebula
What could cause a nebula to appear square? No one is quite sure. The hot star system known […]
A Five Planet Dawn
As January closes and in the coming days of February, early morning risers can spot the five naked-eye […]
Hidden Galaxy IC 342
Similar in size to large, bright spiral galaxies in our neighborhood, IC 342 is a mere 10 million […]
Elliptical M60, Spiral NGC 4647
Giant elliptical galaxy M60 and spiral galaxy NGC 4647 do look like an odd couple in this sharp […]
An Airglow Fan from Lake to Sky
Why would the sky look like a giant fan? Airglow. The featured intermittent green glow appeared to rise […]