A nuclear engineer analyzes the Kurzgesagt episode about why aliens might already be traveling toward Earth and breaks down the science behind interstellar travel and cosmic timelines. The video ...

This video reacts to the Kurzgesagt episode about aliens under the ice and the possibility of life on rogue planets drifting through space. It explains how frozen worlds hidden oceans and internal ...

Life has existed on one planet for about 4 billion years, for all we know. But it might have started right after the Big Bang, when the universe was much stranger and more fantastic than today. A ...