Scientists reveal how seven days of fasting transforms the human body - Science Daily

Going without food for several days does far more than force the body to burn stored fat. Research published in 2024 found that prolonged fasting produces widespread and coordinated biological changes across multiple organs, with some of the most notable effects appearing only after about three days without calories. The findings, published in Nature Metabolism, offer an unusually detailed look at how the human body responds during an extended fast. Researchers found evidence of biological effects that went beyond weight loss, although many of the potentially health related changes did not become apparent until participants had gone roughly three days without food.

More than 99% of the US population lives under light-polluted skies, according to a 2016 study published in Science Advances. With streetlights, brightly lit parking lots, arenas, and passing headlights brightening the night, it can be easy to forget how dark the sky actually is and how many stars appear when you get away from populated areas. Seeing that many stars for the first time can make you pause and remember where you truly are. You are on a rock spinning through space, surrounded by a universe filled with stars, planets, and galaxies larger than anything you can imagine. A remote mountain excursion can combine a dark sky encounter with a day of hiking and sightseeing. After sunset, bright stars emerge above the slopes and ridgelines. These American mountains lie within officially designated dark sky locations that protect natural darkness and the views of the universe it reveals. In northeastern New Mexico, Capulin Volcano sits among volcanic cones, mesas, and buttes in one of the darker areas of the lower 48 states. These landforms help shield the night sky from distant lights, while the rugged terrain has discouraged development in the area.

Here is SpacePolicyOnline.com’s list of space policy events for the week of October 18-24, 2026 and any insight we can offer about them. The House and Senate are in recess, except for pro forma sessions, until after the midterm elections. This week has two especially interesting events — the launch of JAXA’s Martian Moons eXploration (MMX) mission tomorrow (Monday) afternoon EDT, and a NASA update on the Artemis program on Friday — plus many others. We’re also keeping track of the discussions on social media about the very close approach of Russia’s Kosmos 2612 to the U. S.-registered ICEYE X36 Synthetic Aperture Radar (SAR) satellite.