Why science is never settled

Prototype variable star has a previously unknown companion

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This is a surprising discovery, since Delta Cephei is one of the most studied stars, of which scientists thought they knew almost everything.

 Global Warming crowd think they know everything, or or they try to suggest that everything is already known about their so-called claim to be science driven.  If they were truly scientifically oriented, they'd know things like the above are always happening in science.  Otherwise, it isn't science.  It is a religion, which ( come to think of it ) should be settled, but these days can be said to be malleable to the will of politicians ( as with homosexual marriage ).