60-second Science

The black hole at the center of our galaxy is emitting near-constant, random light. The European Space Agency has approved astronaut candidate John McFall, making McFall the first physically disabled candidate to be cleared to fly. The risk of asteroid 2024 YR4 hitting Earth rose to more than 3 percent and then dipped down to 1.5 percent with new data—our February 12 episode explained why this risk has been changing. Recommended reading: Hear our February 12 episode about asteroid 2024 YR4: https://www.scientificamerican.com/podcast/episode/what-we-know-about-2024-yr4-the-asteroid-with-a-2-percent-chance-of-impact/  Read more of guest host Allison Parshall’s exceptional coverage: https://www.scientificamerican.com/author/allison-parshall/  E-mail us at sciencequickly@sciam.com if you have any questions, comments or ideas for stories we should cover! Discover something new every day: subscribe to Scientific American and sign up for Today in Science, our daily newsletter.  Science Quickly is produced by All