天文学百科 The Astronomy Book (Big Ideas Simply Explained)
In 1609, Fabricius confirmed that Myra Cetaei was a periodic variable star, showing that, contrary to the prevailing Greek philosophy that the cosmos was unchanging, stars were not constant.
Metaphysics insisted on treating the universe as one thought or treating thought as one universe; and philosophers agreed, like a kinetic gas, that the universe could be known only as motion of mind, and therefore as unity.