Hot dog DNA, Spooky asteroid, and comet cocktails

A new report indicates that hot dogs contain a small amount of human DNA. Don’t panic–it’s not what you think.

Also: An asteroid named Spooky does a Halloween fly-by, Comet Lovejoy spews alcohol and sugar into space, carbon nanotubes in the air, and geneticists claim we can live longer by deleting genes from our DNA.

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