The biosphere is an extremely dynamic system, with energy flowing from one group of organism to another at all times. How does this flow operate? How do nutrients cycle? What is biomass? What are gross and net primary productivity? Let's...

Describes the Miller-Urey experiment and how it described the beginning of life on Earth.

After decades of searching for organic compounds on the Red Planet, scientists have finally been successful.

This video provides a brief overview of the early stages of life on Earth, highlighting the importance of organic compounds in the early oceans and the role they played in the development of the first living cells. It also discusses the...

Luther Beegle, Deputy Division Manager for Science at NASA’s Jet Propulsion Laboratory, takes us through the history of previous landers we have sent to Mars and highlights Perseverance, the most sophisticated rover NASA has ever sent to...

Dr. Aaron Burton and Dr. Marc Fries, Planetary Scientists, talk about searching for organic material in meteorites from around the solar system. They share what we're finding that helps us understand the fundamentals of life here on...

Biology can be pretty dry. You’re stuck in a classroom studying a textbook full of boring definitions and complicated diagrams... That’s why we’re going on a field trip with Sally! She’s visiting a floating city in the Pacific Ocean –...

Sadly, it’s their last day in the Garden of Babylon. But nothing cheers up Sally like a shopping spree! The class is off to buy souvenirs before they say farewell to this wonderful city. This lesson will conclude our introduction to the...

Is there life on Mars? Could the newly discovered planets around Trappist-1 be home to aliens? Alltime 10s investigates, with 10 Biggest Discoveries In The Search For Alien Life.

A news feature from NASA’s SOFIA mission originally posted on August 16, 2016.

Dragonfly is a NASA mission to explore the chemistry and habitability of Saturn's largest moon, Titan. The fourth mission in the New Frontiers line, Dragonfly will send an autonomously-operated...

The Curiosity rover has been probing the secrets of Mars since its arrival in 2012. Its discoveries include chemical signatures that could be related to life – or, alternatively, to geological processes.

Since arriving at Mars in 2012, NASA's Curiosity rover has drilled into rocks in search of organics - molecules containing carbon. Organics are the building blocks of all life on Earth, though they can also...

Tucked inside the Curiosity rover is a miniature chemistry lab designed to unlock the secrets of Mars. Principal Investigator Paul Mahaffy, Deputy Principal Investigator Pamela Conrad, and MSL Participating Scientist Jennifer...

Let’s fly to Eukarytopia, the home of the eukaryotes! You can learn all about plants in the Garden of Babylon! This lesson will begin our series on eukaryotic cells. We’ll look at the structure of plant cells, focusing on components...

Sally’s never-ending field trip continues. This time, they’re exploring the bustling city of Zoo York. Perhaps she’ll travel for the rest of year 11, only returning home for a hot meal and special occasions. This lesson will examine the...

Biology can be pretty dry. You’re stuck in a classroom studying a textbook full of boring definitions and complicated diagrams... That’s why we’re going on a field trip with Sally! She’s visiting a floating city in the Pacific Ocean –...

Learn the basics about the properties and chemistry of benzene, as a part of organic chemistry. Benzene is an organic molecule. Benzene is a colourless liquid at room temperature. Its boiling point is 80 degrees C. It’s found naturally...

Let’s fly to Eukarytopia, the home of the eukaryotes! You can learn all about plants in the Garden of Babylon! This lesson will begin our series on eukaryotic cells. We’ll look at the structure of plant cells, focusing on components...