Have you ever seen the Northern Lights? The popular natural phenomenon that illuminates the sky with glowing hints of vibrant color is a magnificent sight to behold, if you're lucky enough to see it.

Phased array antennas are advanced antenna systems that utilize the principle of constructive and destructive interference to steer a beam of radio waves electronically. This phenomenon happens ...

Wearing sunscreen all year round can help protect your skin from harmful UV rays. CREDIT: DieterMeyrl via Getty Images. Get the Popular Science daily newsletter💡 ...

With all the recent changes, you might be wondering, "What is Twitter?" The short-form social media platform has undergone a complete rebrand to X thanks to Elon Musk, but we're still here to help you ...

VIX measures expected S&P 500 volatility, aiding short-term market outlooks. VIX surges hint at investor anxiety, predicting possible market drops. Though insightful, VIX often overestimates actual ...

The sunshine may look inviting, especially with warm and dry conditions, but there is an invisible threat that could harm your health. Ultraviolet Radiation, or UV, is a type of electromagnetic ...

An excessive heat warning is in effect throughout most of Delaware through Wednesday, June 23. The heat index for most of Delaware will hit 100 degrees or higher for much of this week. The heat index ...

Hang Seng Index tracks top HKEX firms, critical for analyzing Asian markets. Top HSI sectors: finance, IT, consumer discretionary; drive market predominance. Investing in HSI funds can diversify ...

Smoke from wildfires in Canada has drifted into the U.S., prompting air quality alerts for Americans as it continues to spread. But when officials and forecasters classify a city's air as "unhealthy" ...

A drug’s therapeutic index is a ratio that doctors use when prescribing medications and determining dosage. It shows how much of a drug a person’s blood can contain before it becomes toxic. The ...