Supersonic jets like the Concorde face concerns over safety, high carbon output, and cost. They also make loud sonic booms so loud that only transoceanic flights are legal. Now one NASA program is trying to make a quiet supersonic plane...

That asteroid the headlines have been warning people about isn't likely to actually hit us, and scientists might have solved a mystery that could save lives: the relationship between tides and earthquakes.

Hank tells you about cavitation - the power of tiny bubbles to weaken metal, kill fish & maybe even cure cancer.

It used to be that you could get on a Concorde jet and fly across the Atlantic ocean faster than the speed of sound, but what does the future hold for supersonic flight?

Breaking the bottom out of a glass bottle by hitting the top is a challenging trick, but involves a ton of physics. The explanation is related to cavitation - a process seen in the Mantis Shrimp attack, head injuries and pouring honey!

HD colour footage of shock waves from nuclear bomb testing. Montage. Filmed on 35mm. 1950s

Trees falling from the shock wave of a nuclear explosion at the Soviet nuclear test site, the Totskoye range (Orenburg Region). 1954. Filmed on 35mm.

Shots of destruction after a nuclear explosion, 1954. Filmed on 35mm. HD.

Water coming in with great strength

HD. Seamless loop. White ripples extend outward and overlap on a blue background. Versatile background to suit nature, corporate and science themes.

One of the Desert Rock exercises by the United States, called Operation Buster-Jangle, at the Nevada Test Site, 1951. 20 kilotons atomic bomb test. The video shows soldiers watching the explosion from a distance of 11 kilometers.