This video takes a look at hydrothermal vents and the novel life forms that thrive there in the absence of sunlight, fueled by underwater volcanoes. One of these harsh environments is the Axial Seamount off the West Coast of the United States.

"Sunday Bloody Sunday" is a song by the Irish rock band U2 that was written as a response to events related to conflict in Northern Ireland at the time. It is considered one of their signature songs, and is one of the band's most performed tracks.

When we look at insults used in Shakespeare's play "Romeo and Juliet," we get a new insight into dynamics between the characters and how they relate to the development of the story.

Justin Bieber headlined the 2015 Jingle Bell Ball in London, finishing his set with the song "Sorry."

Katie performs "I Will Be There" - the first single from her new album Ketevan.

Enjoy this excerpt of Led Zeppelin performing "Stairway to Heaven" at Earls Court. Written by guitarist Jimmy Page and vocalist Robert Plant, the song is widely acknowledged as one of the greatest rock songs of all time.

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.

Sigrid describes her time in Basel, and how she ended up visiting France and Italy as well.

The cover letter is an essential document when submitting a job application. Here you can learn about what function a cover letter should serve.

Bryan Adams and The Who perform Behind Blue Eyes, one of The Who's most well-known songs, at The Royal Albert Hall, London, in aid of the Teenage Cancer Trust.

James Bay is an English singer-songwriter and guitarist. His single "Hold Back the River" is certified platinum and appears on his debut album "Chaos and the Calm."

Here is a short animated video about the importance of fisheries for food security, health and growth in developing countries, highlighting the commitment of the EU to helping promote sustainable management of seafood resources and inclusive opportunities for trade and growth.

Justin James is a singer from Vancouver, British Columbia. This song is from his record Islands.

Justin James began writing songs when he was 20 years old and now tours the world performing his music. Releases include Islands (2013), A Beautiful Life (2011), Perfect Sometimes (2009), and Sun Drenched (2007). In this video, you can hear many samples of his songs in performances and music videos.

Penny invents a quiz to find out whether Sheldon or Leonard is smarter, which only reveals that both of them are completely uninformed about popular culture with the exception of Star Trek.