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Oil and gas companies in Pennsylvania are likely using dangerous forever chemicals in fracking wells, without having to legally disclose this to the state. This is making it difficult for vulnerable communities to know if they are at risk of contamination and health issues.
The International Space Station (ISS) has been home to more than 250 astronauts who have lived and worked on board the orbiting lab for months at a time. Unlike homes on Earth, however, the space station has been discovered to have higher levels of chemical contamination lingering in dust.