Sophia Brahe assisted Tycho Brahe in observing the 1572 supernova.
On 11 November 1572, Sophia Brahe played a crucial role in observing a 'new star', or supernova (SN 1572), with her brother Tycho Brahe. This observation was pivotal in astronomy as it contradicted the prevailing Aristotelian belief in an unchangeable celestial sphere. Their findings provided significant evidence that challenged existing astronomical doctrines, laid the groundwork for future discoveries, and emphasized the role of women in scientific observation during a male-dominated era.