The world's first test tube baby visits the Science Museum to celebrate her birth. Louise Brown who is the world's first test tube baby took part in a press conference to mark her approaching 40th birthday, at the Science Museum on July 23, 2018, in London, England. (Photo:VCG)

Louise Brown looks at where she was created, inside adesiccator. Louise Brown who is the world's first test tube baby took part in a press conference to mark her approaching 40th birthday, at the Science Museum on July 23, 2018, in London, England. (Photo:VCG)

On July 25, 1978, Louise Brown became the first baby to be born using the In Vitro Fertilization (IVF) technique pioneered by British researchers Robert Edwards, Patrick Steptoe and Jean Purdy. The Science Museum in London is holding an exhibition entitled “IVF: 6 Million Babies Later”to celebrate the success of IVF. (Photo:VCG)

The dessicator that Louise Brown was created in is seen in a display case at the Science Museum on July 23, 2018 in London, England. (Photo:VCG)

A selection of IVF hormone bottles and syringes are seen, at the Science Museum on July 23, 2018 in London, England. (Photo:VCG)