The 2018 Nobel Prize in Physics has been awarded to a woman for the first time in 55 years.
Donna Strickland, from Canada, is only the third woman winner of the award, along with Marie Curie, who won in 1903, and Maria Goeppert-Mayer, who was awarded the prize in 1963.
Dr Strickland shares this year’s prize with Arthur Ashkin, from the US, and Gerard Mourou, from France.
It recognises their discoveries in the field of laser physics.
Dr Ashkin developed a laser technique described as optical tweezers, which is used to study biological systems.
Drs Mourou and Strickland paved the way for the shortest and most intense laser pulses ever created.
The last woman to win the physics prize, German-born American physicist Maria Goeppert-Mayer, took the prize for her discoveries about the nuclei of atoms.
Polish-born physicist Marie Curie shared the 1903 award with her husband Pierre Curie and Antoine Henri Becquerel for their research into radioactivity.
The award is worth a total of nine million Swedish kronor (£770,686; $998,618). Read more