The winter solstice is here today (Dec. 21), marking the shortest day and longest night of the year for the Northern Hemisphere. As the astronomical start of winter, today is

This article was originally published at Eos. The publication contributed the article to Space.com’s Expert Voices: Op-Ed & Insights. Our sun is about halfway through its life, which means Earth

Online sales are a great chance to upgrade your gear for less. That telescope you’ve got your eye on could suddenly be $200 cheaper, or a better model might suddenly

On Friday (Dec. 19), the interstellar invader, comet 3I/ATLAS, made its closest approach to Earth, coming to within 168 million miles (270 million kilometers) of our planet at 1 a.m.

With the holidays upon us, a great space board game makes for great entertainment and a terrific gift for the family, or just for you. Games are classified as heavy,

The seventh-ever mission of Japan’s H3 rocket did not go according to plan. The H3 launched from Tanegashima Space Center on Sunday (Dec. 21) at 8:51 p.m. EST (0151 GMT

One of the world’s largest Bitcoin mining facilities is seen leaking heat into the environment in a new image captured from orbit by a heat-seeking satellite that was recently released

Before a space telescope ever reaches orbit, and long after satellites are up there, NASA has another way to do frontier science: high-altitude scientific balloons. These helium balloons can loft

NASA’s SPHEREx observatory has completed its first map of the entire sky over Earth, and it is incredible. Beyond its aesthetic value, the map and the rest of the data

What was your skywatching highlight of 2025? A comet becoming visible to the naked eye? Mars disappearing behind the moon? Or did you glimpse a “blood moon” total lunar eclipse