Comet Watch: 3I/ATLAS Flies Through the Solar System
“This is the first opportunity to study an interstellar object in such exquisite detail,” says Dr. Thomas H. Puzia, an old friend of timeanddate.
Elsewhere on timeanddate.com
Aurora Alert: Will We See a Halloween Sky Show?
Skywatchers farther from the poles than usual could have a chance to see auroras in the next few days, due to high-speed solar wind from a coronal hole.
AM and PM: What Do They Mean?
How does the 12-hour clock system work? Is midnight 12 am or 12 pm?
What Is Daylight Savings Time (DST)?
About 40% of countries use Daylight Saving Time. Learn how it works, what makes it controversial, and why it’s not actually saving any daylight.