Researchers are developing tattoo inks that do more than make pretty colors. Some can sense chemicals, temperature and UV radiation, setting the stage for tattoos that diagnose health problems.
A couple taking in the view from Table Mountain, Cape Town.
Getty Images
Too much ultraviolet radiation is dangerous for human health. Excessive exposure can cause skin ageing and sunburn and can induce melanoma, cataracts, ocular melanoma, and immunodeficiency.
Spend many months attached to the ISS and see how well you grow.
NASA
If you want to live on Mars, you're going to need to grow food. Seeds are naturally equipped to handle challenging Earth environments, but how well can they survive what they'll encounter off-planet?
Nearly 40,000 cancers diagnosed in Australia can be prevented if people avoid known risk factors for the disease, according to research published today.
Employers have a duty to keep their employees safe from the sun.
Reuters/Mike Blake