December brings an array of night sky events including a mysterious interstellar comet, the Geminids meteor shower and winter ...

As much of a toxic place as the internet can be, you can also learn something new every time you go online. Such pieces of ...

As the winter solstice approaches, North America is closing in on the shortest day of the year -- and in many places, the amount of daylight lost since summer adds up to hours.

If you’re now curious where to start, keep reading for a full breakdown of the best CurrentBody devices—including insights ...

一项发布在《内科学年鉴》（Annals of Internal Medicine）上的新研究发现，每天一次长距离步行比多次短距离步行更有利于心脏健康，特别是对锻炼量较少的人来说。 The study looked at more than 33,000 adults aged 40 to 79 in the UK who walked fewer than 8,000 steps a day.

NASA is sending two spacecraft to Mars on their new ESCAPADE mission to reveal how space weather robbed it of its atmosphere and turned it dry ...

Stars form in massive clouds of gas called molecular clouds. As they form, they accrete gas from these clouds, and as the ...

Our planet’s magnetosphere has seen dramatic shifts across its history—even total reversals—but this recent wrinkle doesn’t ...

If you are into planets and also like to get up pre-dawn (much easier in the Northern hemisphere now that it is winter here), ...

The next full moon will be on Saturday, Jan. 3, 2026. It will officially reach its full moon phase at 5:03 a.m. EST (1003 GMT ...

Hole in the Sky, by Daniel H. Wilson, is one of Scientific American’s best fiction picks of 2025. In the novel, aliens talk ...