Today, hearing aids are finally available over the counter. What this means for accessibility and first-time buyers. Plus, a test of the Earth’s planetary defense.Read more:For the hard of hearing, it feels like the Food and Drug Administration is finally listening. On Monday, the FDA is allowing hearing aids to be sold over the counter for people with mild to moderate hearing loss. This means you no longer need a prescription or custom fitting to get a hearing aid. Experts have called it a game changer that is expected to make hearing aids more affordable and accessible for millions of people.Disability reporter Amanda Morris walks us through different types of hearing loss, the range of hearing aids available for consumers, and what this might mean for accessibility for the hard of hearing. Plus, some good news about our planetary defense system: NASA successfully altered the course of an asteroid, a technique that might someday stop an asteroid from crashing into Earth.