
Interstellar medium (noun, “IN-ter-STEH-ler MEE-dee-um”) The interstellar medium is the gas, dust and radiation filling the space between stars within a galaxy. Interstellar space refers to the regions between stars. And the interstellar medium — or ISM — fills this…
Dr. Nancy Grace Roman, NASA’s first Chief of Astronomy, briefs Astronaut Edwin “Buzz” Aldrin on celestial objects in 1965 in Washington, D.C.
Columbus, Ohio — Viruses can be scary, and COVID-19 reminded us why. “We can prevent viral diseases quite well by vaccination,” says Adam Kovalčík, 19. But once someone is infected, he says, “it’s very hard to cure them.” This high…
Webb has found crystalline water ice in a debris disk around a young, Sun-like star called HD 181327. Based on its presence in our own solar system, scientists have expected to see it in other star systems – but haven’t…
Keeping the International Space Station clean is a high priority for NASA. Air filters, weekly wipe-downs and vacuuming are a must. Still, astronauts there often develop health problems. These include immune problems, skin rashes and other conditions. A new study…
Columbus, Ohio — Is this text AI-generated? That question crops up a lot these days. Computer software to flag AI-generated text exists. But most programs share one crucial weakness, says Jun Jang: no sense of style. His new software hopes…
NASA’s Perseverance rover captured this view of Deimos, the smaller of Mars’ two moons, shining in the sky at 4:27 a.m. local time on March 1, 2025, the 1,433rd Martian day, or sol, of the mission.
Have you ever imagined a video game you’d love to make? If you have an idea for a story or a picture, you can easily grab a pencil and start writing or sketching. But making a video game is different.…
The perfectly picturesque spiral galaxy known as Messier 81, or M81, looks sharp in this composite from NASA’s Spitzer and Hubble Space Telescopes and NASA’s Galaxy Evolution Explorer.
In the beginning, Earth was a hot and lonely planet. It also lacked water. Then, after hundreds of millions of years, the planet cooled, oceans formed — and life emerged. Although scientists can’t know for sure just how life first…