Sunday, October 29, 2017

EarthSky News - Oct 29 - Did Ceres Once Have an Ocean?

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Did Ceres once have an ocean?
If it existed, what happened to it? And could Ceres still have liquid water today?
Tonight … Perseus the Hero and a Demon Star
Algol means head of the demon. Point out this star to your friends this Halloween.
Fornax Galaxy Cluster reveals its secrets
This new 2.3-gigapixel image of the Fornax Galaxy Cluster - one of the largest images ever released by European Southern Observatory - might make you feel small.
How do human genes act in space?
"Looking at gene expression ... we really see an explosion, like fireworks taking off, as soon as the human body gets into space."
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Tonight … Perseus the Hero and a Demon Star
Algol isn't Perseus' brightest star, but it's probably its best known star. Algol is easy to spot in a dark-enough sky.
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Photos: Observe the Moon Night

Last night was International Observe the Moon Night, and EarthSky community members from around the world sent photos, reminding us that we all see the same moon. This shot is from Talha Zia of Karachi, Pakistan.

 

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