Sixteenth century Danish astronomer Tycho Brahe laid the framework for modern cosmology without ever using a telescope.

ON October 24, 300 years had elapsed since Tycho Brahe died at Prague ... Tycho would have had no fear as to the lasting nature of his reputation.

Tycho Brahe was an alchemist who was reluctant to share his discoveries. In his laboratory, however, he worked with an element that humanity discovered nearly 200 years after his death.

Renowned for his groundbreaking work in astronomy, Tycho Brahe also harbored a lesser-known interest in alchemy. Recent ...