Rosetta revisits the exciting scientific discoveries she has made during her time at Comet 67P/Churyumov-Gerasimenko, including the successful search to find Philae. Now it's time to start preparing to descend to the comet for the end of her extraordinary mission.

In this episode, we see how the bears coexist with other creatures in their environment, and also learn about the role of the bear in Tsimshian lore. Enjoy!

Experimenting with the physics of water in the weightless environment aboard the International Space Station. For more out of this world experiments please check out
physics central.

Romantic chemistry is all about warm, gooey feelings that gush from the deepest depths of the heart... right? Not quite. Actually, the real boss behind attraction is your brain, which runs through a very quick, very complex series of calculations when assessing a potential partner. Dawn Maslar explores how our five senses contribute to this mating game, citing some pretty wild studies along the way.

Our friends at Numberphile provide a detailed look at how the game Connect Four is won or lost.

"Help us to complete development of the Ocean Energy Turbine designed to replace Fossil Fuel and Nuclear Energy Dependence." Back this project and make the world a better place.

The Magnus effect is the commonly observed deviation of the spinning ball from a linear flight path. Watch this video to find out why this occurs and what implications it has.

Young black bears need to be careful when encountering the North American porcupine. Enjoy more footage from Alaska and Princess Royal Island in British Columbia, where young raccoons are also out and about.

NASA has announced the results of an epic physics experiment which confirms the reality of a space-time vortex around our planet.

What actually are planets, asteroids and dwarf planets? Here, Dr. Robert Hurt from the Spitzer Science Center in California, touches upon this intriguing question. In addition, he addresses the status of Pluto and how it recently came to pass that, what was once considered our solar system's most distant planet, has recently been demoted and... why? Enjoy!

In this episode of SciShow Kids, Jessi talks about how solar eclipses occur, and why they can only be seen from certain locations.

Alex Bellos tells us about a far superior method of cutting a cake using scientific principles.

This dazzling short film references the Rosetta mission of the European Space Agency, which intends unlock the mysteries of the comets and, in doing so, the origins of our Solar System.