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Climbing to 60° high in the east two hours before sunrise, the constellation Andromeda lies just to the upper right of the easy-to-spot W-shaped constellation Cassiopeia. This morning, let’s enjoy a ...
It’s essentially a reverse Big Bang, which scientists have dubbed the “Big Crunch”. Using data from a number of astronomical ...
Particular stars called Cepheid variables allow astronomers to determine distance, and Hubble spotted one of these within M31 ...