
Inside Flightradar24, the website that tracks every plane in the sky
CNN
Flight-tracking websites follow the real-time movements of the more than 200,000 planes that take off and land every day. Following planes has become the internet's new hottest hobby, with Flightradar24 leading the way.
(CNN) — On an average day, more than 200,000 flights take off and land across the world. That includes commercial, cargo and charter planes -- which account for about half of the total -- as well as business jets, private aircraft, helicopters, air ambulances, government and military aircraft, drones, hot air balloons and gliders.
Most of them are equipped with a transponder, a device that communicates the aircraft's position and other flight data to air traffic control, and that signal can be captured with inexpensive receivers based on a technology called ADS-B, for Automatic Dependent Surveillance-Broadcast. That's what flight-tracking websites do in a nutshell, providing users with a real-time snapshot of everything that's in the sky (minus a few exceptions).

A former leader of the anti-vaccine group Children’s Health Defense will present this week on thimerosal in flu vaccines at a meeting of the newly appointed vaccine advisers to the US Centers for Disease Control and Prevention, according to a CDC official with knowledge of the decision who wasn’t authorized to reveal the information.

Among the eight people Robert F. Kennedy Jr. announced would make up his new group of outside vaccine advisers to the US Centers for Disease Control and Prevention are an emergency physician who posted Islamophobic commentary on social media and two doctors who were paid to provide expert testimony in trials against a vaccine maker.

There’s a video on Luka Krizanac’s phone phone that captures him making coffee at home on an espresso machine. It’s the type of video anyone might take to show off a new gadget to friends or recommend a favorite bag of beans. But the normalcy is exactly what makes it extraordinary for Krizanac – because just a few months ago, he didn’t have hands.