
Betelgeuse Will Briefly Disappear in Once-in-a-Lifetime Coincidence
For six seconds tonight, the constellation Orion will appear to lose the vibrant red star at its shoulder—and scientists are thrilled
Meghan Bartels is a science journalist based in New York City. She joined Scientific American in 2023 and is now a senior reporter there. Previously, she spent more than four years as a writer and editor at Space.com, as well as nearly a year as a science reporter at Newsweek, where she focused on space and Earth science. Her writing has also appeared in Audubon, Nautilus, Astronomy and Smithsonian, among other publications. She attended Georgetown University and earned a master’s degree in journalism at New York University’s Science, Health and Environmental Reporting Program.

Betelgeuse Will Briefly Disappear in Once-in-a-Lifetime Coincidence
For six seconds tonight, the constellation Orion will appear to lose the vibrant red star at its shoulder—and scientists are thrilled

What’s Causing Mysterious Respiratory Illness in Dogs?
Veterinarians and researchers are investigating mysterious clusters of severe respiratory disease in dogs

Sun Unleashes ‘Canyon of Fire’ Filament of Plasma
A solar outburst shoots charged particles into space—and toward Earth

Plankton Are Making Ocean Plastic Pollution Even More of a Mess
Microbes tear up plastic into teeny tiny pieces that are even more dangerous to ecosystems

NASA May Pay $1 Billion to Destroy the International Space Station. Here’s Why
The International Space Station—larger than a football field and weighing almost 450 tons—must eventually fall to Earth. It’s a delicate, dangerous process

New Space Station Sensor Can Reveal Hidden Greenhouse Gas Polluters
An instrument mounted to the International Space Station was built to map dust in the atmosphere, but it’s also giving scientists a wealth of information about methane and carbon dioxide emissions

Why Does This Hybrid Monkey Glow Green?
Researchers created a monkey that combines cells from two different individuals; a lab technique gave it a strange green glow

Where Farmers’ Almanacs’ Weather Predictions Come From
Two competing farmers’ almanacs say this winter will be cold and snowy, but NOAA, the top U.S. weather agency, disagrees

Birds Named after People Will Get New English Names
Standard English names for North American birds will now focus on the animals rather than people

NASA Asteroid Mission Discovers Tiny Surprise Moon with ‘Really Bizarre’ Shape
NASA’s Lucy mission flew past an asteroid nicknamed Dinky, only to discover an even smaller space rock orbiting it

NASA’s Lucy Asteroid Mission Zips Past a ‘Dinky’ Space Rock
NASA’s Lucy mission is starting its science studies way ahead of schedule

Hurricane Otis Came Out of Nowhere to Slam into Mexico
Tropical Storm Otis rapidly intensified into a Category 5 hurricane overnight in a region that has never seen landfall by a storm of such power before

Earth’s Latest ‘Vital Signs’ Show the Planet Is in Crisis
The overall picture of Earth’s health is grim, although there are bright spots: solar and wind power are on the rise, and deforestation has slowed

Mouse Mummies Show Life Persists in Mars-like Environment
Tiny mice found mummified at the summits of Andean volcanoes appear to be living in the harsh environment, which resembles Mars more than it does Earth

The Sun’s Magnetic Poles Are Vanishing
The sun’s magnetic poles are about to reverse as part of a regular 11-year sunspot activity cycle

NASA’s Psyche Mission Launches to Mysterious Metallic Asteroid
NASA’s Psyche mission is on its way to a heavy-metal asteroid of the same name—a type of object that scientists have never seen up close before

Solar Storms Can Hinder Bird Migration
New research suggests that solar storms interfere with the magnetic compass that birds use for long-distance travel

The Flu Vaccine Works—In a Way Most People Don’t Appreciate
The CDC is emphasizing how the flu vaccine can turn the virus from “Wild to Mild”

10,000 Pre-Columbian Structures Could Be Hidden beneath Amazon Rain Forest
If this new estimate holds up, scientists have yet to identify the vast majority of earthworks strewn across the Amazon

U.S. Heat Deaths Will Soar as the Climate Crisis Worsens
With three degrees Celsius of warming, U.S. deaths during extreme temperatures could reach 63,000 a year, researchers calculate

These Adorable Jellyfish Show Learning Doesn’t Even Require a Brain
Human scientists—used to the benefits of a centralized, complex brain—have been underestimating what a simple nerve network can do

Jupiter’s Moon Europa May Hide Tantalizing Carbon in Mysterious Ocean
Jupiter’s mysterious moon Europa may hold carbon in the ocean lurking beneath its icy shell

Massive Sun Outburst Smacks NASA Spacecraft
If it had hit Earth, this coronal mass ejection could have caused continent-scale blackouts, scientists say

NASA Wants to Make UFO Studies a Real Science
NASA has appointed a director of unidentified anomalous phenomena research to advance that area of scientific investigation