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SciShow
Could Life Be Older Than Earth?
SciShow Space explores new theories about the timing of the development of life on Earth, and elsewhere in the universe.
PBS
Did Life on Earth Come from Space?
How did life on Earth get started? Did life on Earth originate on another planet? Either Mars, or in a distant solar system? Could Earth life have spread to have seeded life elsewhere? Let's see what modern science has to say about the...
SciShow
Tardigrades: Adorable Extremophiles
Hank explains why NASA and the European Space Agency are in love with tardigrades and how these extremophiles are helping us study the panspermia hypothesis.
Professor Dave Explains
The Origin of Life on Earth
You must have wondered about it before, haven't you? How did life begin on earth? I mean the very first thing. The first unicellular organism, billions of years ago. Is it even possible? As it happens, our understanding of chemistry,...
SciShow
Tardigrades: Adorable Extremophiles
Tardigrades are microscopic organisms (0.5 mm long) with segmented bodies and four pairs of legs, each with four to eight claws. The narrator of this video explores tardigrades, organisms that can survive the most extreme environments...
Crash Course
Life Begins: Crash Course Big History #4
Scientists try to understand the origins of life, and answers to these questions might be found during our lifetime. The fourth video in a 16-part series explains the earliest forms of life on Earth and their development. It covers...
Crash Course
Crash Course Big History #4: Life Begins
The Crash Course guys teach about life on Earth- the earliest forms of life on Earth, and some of the ways that they developed into other forms. [13:29]