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 […]
Science
3D Bennu
Put on your red/blue glasses and float next to asteroid 101955 Bennu. Shaped like a spinning toy top […]
A Comet and a Crab
This pretty field of view spans over 2 degrees or 4 full moons on the sky, filled with […]
Sharpless 308: The Dolphin-Head Nebula
Blown by fast winds from a hot, massive star, this cosmic bubble is huge. Cataloged as Sharpless 2-308 […]
Vikings Were in the Americas Exactly 1,000 Years Ago by ...
By studying tree rings and using a dash of astrophysics, researchers have pinned down a precise year that […]
Lucy Launches to Eight Asteroids
Why would this mission go out as far as Jupiter — but then not visit Jupiter? Lucy’s plan […]
Palomar 6: Globular Star Cluster
Where did this big ball of stars come from? Palomar 6 is one of about 200 globular clusters […]
How a Nuclear Bomb Could Save Earth From a Stealthy ...
An atomic blast is not the preferred solution for planetary defense, but 3-D models are helping scientists prepare […]
Earthshine Moon over Sicily
Why can we see the entire face of this Moon? When the Moon is in a crescent phase, […]
The Einstein Cross Gravitational Lens
Most galaxies have a single nucleus — does this galaxy have four? The strange answer leads astronomers to […]