Professor of Applied Mathematics and Astronomy at Cardiff University of Wales and director of the Cardiff Centre for Astrobiology.
He is a former student of Fred Hoyle, with whom he co-developed the modern theory of panspermia.
His main astronomical interests are the physics and chemistry of interstellar dust grains and in the optical characterisation of interstellar and cometary dust. He was the first to propose an organic polymeric composition for cosmic dust in 1974. His other interests include the modelling of the cosmic microwave background in non-standard cosmologies.
Jointly with Sir Fred Hoyle, he was awarded the International Dag Hammarskjold Gold Medal for Science in 1986, and in 1992 he was decorated by the President of Sri Lanka with the titular honour of Vidya Jyothi. He was awarded the International Sahabdeen Prize for Science in 1996.
He is a Fellow of the Royal Society of Arts and a Fellow of the Royal Astronomical Society.
Wickramasinghe, N. C., "Formaldehyde polymers in interstellar space", Nature, 252, 462, 1974.
Hoyle, F., and Wickramasinghe, N. C. "Polysaccharides and the infrared spectra of galactic sources", Nature, 268, 610, 1977.
Wickramasinghe is the author or co-author of over 20 books and over 250 scientific papers.