What are the oceans like on Enceladus? On this episode, Neil deGrasse Tyson explores the oceans of Earth and other planets in the search for alien life in hard-to-reach places with planetary scientist Kevin Hand, deep sea oceanographer Julie Huber, and comedian guests Eugene Mirman, Ellie ...

In this week's live Questions and Answers show, I provide the exact number of alien worlds that could detect the Earth, are we made of heavier elements made in other galaxies, will lasers remain perfectly parallel in space? And more... To vote for the best question just post any comment ...

Astrobiologie (6): Extremophile und planetarer Schutz. Sogenannte extremophile Lebensformen besiedeln extreme Habitate bezüglich Temperatur, pH-Wert, radioaktiver Strahlung, Trockenheit, etc. Welche Mechanismen machen sich diese Lebensformen zunutze? Wie können wir unsere irdischen Forschungen ...

NASA is looking for someone to protect Earth from aliens — and the job pays a six-figure salary. Here’s everything you need to know about the position. » Subscribe to CNBC: http://cnb.cx/SubscribeCNBC About CNBC: From 'Wall Street' to 'Main Street' to award winning original documentaries and ...