See the Kepler data release schedule. Exoplanet Archive Kepler Resources General Documentation . Kepler Extended Mission data philosophy; How to request a Kepler number; How to request a K2 number; Search for a Kepler light curve; K2 Mission page
Radium was discovered by Marie Sklodowska-Curie and her husband Pierre Curie on 21 December 1898, in a uraninite (pitchblende) sample. While studying the mineral earlier, the Curies removed uranium from it and found that the remaining material was still radioactive.
Some think the pain he was in as a result of radiation burns and sickness may have caused his lack of awareness. Marie was devastated, but her work continued. For discovering polonium and radium, she received the Nobel Prize for Chemistry in 1911, becoming the only woman ever to receive two such prizes. However, there was still more success due for the family.