Variously defined as "endless" or "unlimited," infinity creates paradoxes that can truly boggle the mind. As the mathematician Dr. James Grimes explains, "there are different kinds of infinity.

Astronomers have discovered a galaxy shaped like an infinity symbol that may contain the first directly observed newborn ...

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A twisted ring of gas, one that stretches more than 600 light-years across the heart of the Milky Way galaxy, has been discovered by astronomers using a powerful infrared space telescope.