Squishy lasers are a new type of laser that are made from soft materials, such as hydrogels. This makes them much more flexible and deformable than traditional lasers, which are made from hard materials such as glass or metal. This flexibility allows them to be used in a variety of applications, such as medicine, where they can be used to image and treat tissue without causing damage.

Squishy lasers have been used to reveal how tumors and babies grow. In one study, researchers used a squishy laser to image the growth of a tumor in a mouse model. The laser was able to penetrate the tumor and provide a detailed image of its structure, including the blood vessels that were feeding the tumor. This information could be used to help develop new treatments for tumors.

In another study, researchers used a squishy laser to image the growth of a fetus in a mouse model. The laser was able to provide detailed images of the fetus's organs and tissues, including the heart, brain, and lungs. This information could be used to help diagnose and treat birth defects.

Squishy lasers are a promising new technology with a wide range of potential applications. They are particularly well-suited for use in medicine, where their flexibility and deformability allow them to be used in a variety of ways without causing damage to tissue.