Bubble ring created by a humpback whale named Thorn. Credit: © Dan Knaub, The Whale Video Company. June 5, 2025, Mountain View, CA -- A team of scientists from the ...

By expelling air from their blowholes while underwater, dolphins can produce a doughnut-shaped vortex that rises to the ...

Smoke rings are being seen in a new light. Doughnut-shaped structures called vortex rings are sometimes seen swirling through fluids. Smokers can form them with their mouths, volcanoes can spit them ...

Warm gas coming from the active supermassive black hole at the centre of the Nest200047 system: the activity of such a black hole crucially impacts the evolution of the galaxy and the intergalactic ...