  Freeman J. Dyson, a brilliant theoretical physicist and a gifted
mathematician, passed away on 28 February 2020 at the age of 96. A vignette of
his outstanding contributions to physical sciences, ranging from the subject of
quantum electrodynamics to gravitational waves, is provided in this article.
Dyson's futuristic ideas concerning the free will of `intelligent life'
influencing the remote future of the cosmos with `Eternal Intelligence', Dyson
tree, Dyson sphere and so on, have also been discussed briefly.
