TikTok, the social app popular with younger users, is under investigation for the way it handles personal data. UK authorities are looking into whether it prioritizes protecting children who use it, reported The Guardian.

Elizabeth Denham, the information commissioner, told a parliamentary committee the investigation began in February, prompted by a multimillion-dollar fine from the US Federal Trade Commission (FTC) for similar violations. “We are looking at the transparency tools for children,” Denham said on Tuesday. “We’re looking at the messaging system, which is completely open, we’re looking at the kind of videos that are collected and shared by children online. We do have an active investigation into TikTok right now, so watch this space.”

The Mars Rover, set to head into Space in 2020, is getting an overhaul CNET reported. One of the more eye-catching conditions is a laser that can zap rocks, which is part of the new SuperCam.

What does the SuperCam do? It’s the next-generation version of the ChemCam instrument installed on NASA’s Curiosity Mars rover, which is currently going about making its own discoveries on the Red Planet. According to NASA, the instrument’s camera, laser and spectrometers “can identify the chemical and mineral makeup of targets as small as a pencil point from a distance of more than 20 feet (6 meters).” NASA intends to put the SuperCam to good use examining Martian rocks and soil, in particular to seek out organic compounds that could be related to past life on Mars.