[noncount] : a quality that makes you continue trying to do or achieve something that is difficult. 1  What he lacked in talent he made up for in determination. 2  dogged/fierce/steely/stubborn determination.
The first modern solution of general relativity that would characterize a black hole was found by Karl Schwarzschild in 1916, although its interpretation as a region of space from which nothing can escape was first published by David Finkelstein in 1958.
William Herschel noticed while surveying stars that one object moved apart from the star background. It was the first planet discovered since ancient times. March 13, 1781. The 7th planet â Uranus â was discovered on this date, completely by accident. British astronomer William Herschel was performing a survey of all the stars that were of magnitude 8 â in other words, too faint to see with the eye â or brighter.