Caitlin Kaiser is a digital meteorologist at weather.com. Read full biography
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Why do stars twinkle and change color? How the atmosphere plays a role
What seems like a little wink from outer space, is not a coincidence at all. Here’s the science behind twinkling stars.
Why stars twinkle: How the atmosphere plays a role
You've probably wondered why stars twinkle, and no, it isn't just your eyes playing tricks on you. The secret lies in the atmosphere. The turbulent air and differing temperatures play a role in how we perceive the light from the stars. Watch to see what's behind the sparkle.
Trick-or-treat forecast: Will weather impact your Halloween?
Halloween is here, but Mother Nature might want to tag along for your trick-or-treating, whether it be rain or chilly temperatures. Parts of the West and the central and southern U.S. could see some scattered showers and storms. Meanwhile, temperatures could be cool enough across the Northern Tier to warrant an extra layer to your costume. Check out your weather forecast here.
More From Caitlin Kaiser
Why the world seems to go quiet after a fresh snow
Why the world goes quiet after it snows: the science explained
Best ski conditions by month
Best ski conditions in the US: A month-by-month regional guide
This winter’s best ski conditions across the US by month
Your 2026 daylight saving time questions, answered
Ask a met: How can you know if a cloud is forming or dissipating?
Here’s your November outlook
November outlook: How El Niño could impact your temperatures
Early look at Halloween: Will your forecast be a trick or a treat?
Send in the goats! 200 tackle wildfire fuel in Glendale, California
