Royal Society Research Fellow, University of Oxford
Fletcher is a Royal Society Research Fellow at the University of Oxford. He works with an international team of scientists studying the formation, atmospheric composition, dynamics, meteorology and chemistry of the gas giants: Jupiter, Saturn, Uranus and Neptune, and the growing number of giant planets around other stars in our galaxy.
A summary of Jupiter's changing face as seen from Earth during its 2014/2015 apparition.
Trying to keep track of the ever-changing face of Jupiter is a pretty big challenge—its a dynamic world that can fascinate and surprise every time we turn our telescopes towards it.
2013 has been a rather exciting year for Europa scientists. Today's exciting news: the Hubble Space Telescope discovery of water vapor plumes from the south pole of this icy moon.