Nanogirl Dr Michelle Dickinson welcomes her twins into the world!

Congratulations are in order for Nanogirl Dr Michelle Dickinson ...

The nanotechnologist and engineer has announced she and her husband Joe Davis have welcomed their baby twins into the world.

Taking to social media, Dickinson shared the exciting news with her fans.

Alongside a sweet snap of the twins, she wrote: "@joepfdavis and I are delighted to welcome Marlow and Kaia into the world.

"Two perfect, happy and healthy new members of our whānau, and the start of the most wonderful - and long-awaited - chapter in our lives."

Dickinson said she and her whānau had been "surrounded by the most incredible aroha and support" since the birth.

"Our hearts are so full of love and gratitude and we are excited to start our next adventure together."

The joyful news comes after the couple tried for many years to start a family.

Together, they went through six years of intense fertility treatments, which sadly included several failed IVF cycles and miscarriages.

Congratulations Michelle and Joe!