NGC 253: Dusty Island Universe
Shiny NGC 253 is one of the brightest spiral galaxies visible, and also one of the dustiest. Some […]
Astronomy
NGC 253: Dusty Island Universe
Shiny NGC 253 is one of the brightest spiral galaxies visible, and also one of the dustiest. Some […]
Halloween and the Ghost Head Nebula
Halloween’s origin is ancient and astronomical. Since the fifth century BC, Halloween has been celebrated as a cross-quarter […]
Propeller Shadows on Saturn’s Rings
What created these unusually long shadows on Saturn’s rings? The dark shadows — visible near the middle of […]
Clouds Near Jupiters South Pole from Juno
What’s happening near the south pole of Jupiter? Recent images sent back by NASA‘s robotic Juno spacecraft are […]
Eagle Aurora over Norway
What’s that in the sky? An aurora. A large coronal mass ejection occurred on our Sun five days […]
Cerro Tololo Trails
Early one moonlit evening car lights left a wandering trail along the road to the Chilean Cerro Tololo […]
Full Moon in Mountain Shadow
On October 15, standing near the summit of Hawaii’s Mauna Kea and looking away from a gorgeous sunset […]
The Tulip in the Swan
Framing a bright emission region this telescopic view looks out along the plane of our Milky Way Galaxy […]
Cylindrical Mountains on Venus
What could cause a huge cylindrical mountain to rise from the surface of Venus? Such features that occur […]