US weather balloons are fairly small, with a diameter of about 5 feet at launch. But they expand as the air around them gets thinner. At high altitude, they’re up to 25 feet across.

The U.S. isn’t the only country that launches weather balloons for atmospheric data collection. There are around 900 sites across the globe that launch weather balloons at the same time each day ...

In the briefing, it was revealed that one balloon circumnavigated the globe in 2019, passing by Hawaii and over Florida, the official said. Balloons were also flown over Japan, India, Vietnam ...

The US intelligence community has developed a method to track China’s fleet of surveillance balloons that was only discovered within the last year, six people familiar with the matter tell CNN.

Departure of Jacques Charles and Marie-Noel Robert’s ‘aerostatic globe’ balloon from the Jardin des Tuileries, Paris, on Dec. 1, 1783, Image via Library of Congress The balloon Entreprenant ...

Kathmandu (Nepal), Dec 18 (ANI): Nepal will host its first-ever International Balloon Festival next week in Nepal’s Pokhara. Addressing a press conference, the organisers of Balloon Nepal Pvt ...

The annual Macy’s Thanksgiving Day Parade will soon bring together an unrivaled cast of balloon characters, along with floats, musical acts and people of all ages — from around the globe ...

The Pentagon says the balloons are part of a Chinese surveillance program that has gone on for years and spanned the globe. The balloon that was recovered allegedly contained sensitive equipment ...