Day in Review: NASA’s Perseverance Offers Clues to Protect Crews from Mars Dust

By studying tiny particles clinging to spacesuit samples aboard the rover, scientists could help develop better ways to reduce... 

Missions __ News __ Galleries __ Events October 26, 2026 Mars NASA’s Perseverance Offers Clues to Protect Crews from Mars Dust By studying tiny particles clinging to spacesuit samples aboard the rover, scientists could help develop better ways to reduce astronauts’ exposure to dust on Mars. Full Story JPL Halloween Highlights EXOPLANETS Gamma Ray Ghouls In the depths of the universe, the cores of two collapsed stars violently merge to release a burst of the deadliest and most powerful form of light, known as gamma rays. These beams of doom are unleashed upon their unfortunate surroundings, shining a million-trillion times brighter than the Sun for up to 30 terrifying seconds. No spaceship will shield you from the blinding destruction of the gamma ray ghouls! Get the Poster Visit the Galaxy of Horrors Daring Mighty Things Since 1936

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NASA plans for Artemis III lunar mission

Plus, how your brain can deal better with uncertainty ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏  ͏ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­

October 26, 2026—A schedule for the Artemis III lunar mission, how your brain handles uncertainty and possible data centers in the middle of endangered beluga habitats. —Emma Gometz, Newsletter Editor TODAY'S NEWS An artist’s concept shows SpaceX’s Starship Human Landing System (Starship HLS) docking directly to an Orion spacecraft. NASA/SpaceX NASA has laid out a 14-day schedule for its upcoming Artemis III mission, set to lift off in summer 2027. | 3 min read A new (creepy) startup called Warhound wants to genetically engineer super-dogs for combat. Is that possible? | 3 min read  The Trump admin is considering using a “heat ray” technology at the border​ with Mexico. Research on the tech is sparse. | 3 min read Meet the 17th century English scientists who investigated whether ghosts are real. (Somebody had to do it!) | 3 min read Trypophobia warning: What’s behind the intense fear of clusters of holes that affects one in six people? | 4 min read Contact with birds can spread a dangerous form of pneumonia, also known as “parrot fever.” | 3 min read Proposed underwater data centers might be built smack in the middle of two endangered whale populations’ habitats. | 4 min read Get caught up on some fun science news updates, including gymnastic snakes, chatty vultures and missions to faraway moons. | 10 min podcast  More News TOP STORIES Van Santen & Bolleurs ​Uncertainty in the Brain Researchers have described the brain as a prediction machine helping us assess risk and get out of trouble to survive. But the more the odds change on us, the more stressful life becomes—and, research shows, the greater our risk for mental and physical illness. As climate change, change in political norms, AI, and more disruptions upend American life, researchers are learning more about how the brain handles uncertainty in hopes of curbing some of its negative effects. ​ How prediction works: Predictable environments are essential to hone young children’s skills of anticipation and help them learn to live in a complex world. The brain matches its predictions with sensory information, constantly updating its predictive abilities as more information becomes available. Dopamine pathways are a key part of this—dopamine increases before a predicted outcome, and tanks if the outcome is wrong. But this is also why too much unpredictability can be bad for us, because all the unexpected results decrease our dopamine levels. ​ Uncertainty and stress: Large prediction errors can be stressful. They signal that something major is wrong, requiring immediate attention and correction. They can activate the hypothalamic-pituitary axis in the brain, releasing the stress hormone cortisol to prepare the body to react. Often, those stress responses can take up a lot of energy and even shunt metabolic energy away from processes such as digestion and toward the heart, lungs, brain and muscles. In worse cases, a person can retreat into depression. ​ Resilience: People who thrive in uncertain and threatening situations tend to share traits related to flexibility. These include optimism about recovery, having confidence in your ability to cope, and re-interpreting anxiety in a less threatening way (for example “butterflies in your stomach” is a reframing of nausea). Resilient people experience life’s typical ups and downs, but their senses don’t overwhelm them. In most cases, they will be able to seek social support. ​ What the experts say: Curiosity is a human quality that naturally leaves us open to the risk of being wrong about our predictions. But that doesn’t mean we have to struggle when it inevitably happens. “If you expect to be surprised, you can come back more quickly,” says Laura Harrison, who studies uncertainty at the Valor Institute for Neuroscience. “Stress or change in the world is opportunity as well.” ​ Join the discussion: How do you deal with uncertainty? Are there things you do to help boost your own resilience and confidence in your ability to cope? Share your thoughts here. ​

WHAT WE'RE READING The BBC’s Blue Planet III left flaws in its footage to prove it’s not AI | The Guardian The Man Who Saved the Internet Yesterday | The Atlantic Grand theft AI: Highway thieves are stealing millions in data center gear | NBC News Support this newsletter with a subscription to Scientific American. Start today: 90 days for just $1. Subscribe Researchers say that simple mental reframing, like viewing your heart pounding as excitement rather than terror, can help you build resilience during stressful events. I find that approach helpful because it doesn’t deny the body’s reaction to uncertainty, but rather redirects it towards achieving goals—and maybe even enjoying the process along the way. Speaking of: happy Monday! After reading this newsletter, I hope you’re ready to handle anything this week throws at you. You can always reach me at newsletters@sciam.com. Andrea will be back tomorrow!   —Emma Gometz, Newsletter Editor

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