Wednesday, May 23, 2018

May 23 - Spiders and Ants

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A case against killing spiders

An entomologist explains why it's a good idea to be nice to the spiders you meet in your house and consider a live-and-let-live policy.

A space ant fires its laser   

A rare natural laser beaming from the heart of the spectacular Ant Nebula suggests the presence of a double star system.

Tonight … Deneb, tail of Cygnus the Swan

Deneb marks the Tail of Cynus the Swan ... and the head of a crosslike pattern known as the Northern Cross.

Bright star Deneb is distant and very luminous    

But - especially with last month's 2nd data release from the Gaia satellite, whose job is measuring star distances - why don't we know Deneb's distance for certain?

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Deneb, tail of Cygnus the Swan

Can you see a Swan in this pattern of stars? In skylore, Cygnus represents a Swan, and Deneb marks its tail.

Sunrise from Sea Bright, New Jersey

One World Trade Center - aka Freedom Tower - is the main building of the rebuilt World Trade Center complex in Lower Manhattan, New York City. Photo by Steve Scanlon Photography.

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