Learn about soil and how different kinds of soil hold moisture. See how NASA plans to use measurements from the Soil Moisture Active Passive Mission, or SMAP, to make Our World a better place to live.

Water has some very unique properties, but what are they? What do they mean for us? Water, unlike other types of matter, is less dense as a solid than as a liquid. This means more than simply floating cubes in a cold drink. The various forms of water allow life on our world to thrive!

Why is NASA interested in Earth's ice? The creation of ICESat-2 is allowing NASA's scientists to make accurate maps of polar ice sheets. These maps help them make informed predictions about weather patterns, climate change, and the effects of changing ice structures. The maps are so accurate they can measure to within 3 centimeters of an ice sheet's actual thickness from a huge distance!

How is NASA using SAGE III to help us learn about the air we breathe? See how the colors of sunsets tell us about the particles in the air. Find out how putting an instrument on the International Space Station will allow NASA to make repeated measurements over time to help us take better care of our atmosphere.

Learn about NASA's Lunar Sample Laboratory Facility at Johnson Space Center in Houston, Texas. See how NASA protects these precious moon rocks brought to Earth by the Apollo astronauts. Explore the special storage boxes filled with nitrogen where the moon rocks are kept.

Visit a lab at NASA's Johnson Space Center where scientists study meteorites. Learn how aerogel, the lightest material in the world helped capture pieces of a comet and return the comet dust to Earth. See what scientists can learn about our universe from these tiny particles.

Find out how plants use light to make their own food in a process called photosynthesis. See how NASA uses LED lights to help grow plants in space. Design your own plant growth chamber like the ones used by NASA.

Join astronauts on board the International Space Station, or ISS, to learn about living in space. Explore the inside of a Temporary Sleep Space, or TESS, and see the astronauts' sleeping bags. Learn how the astronauts do personal hygiene tasks like brushing their teeth or shaving.

Join NASA scientists and beekeepers in a citizen science project to collect important data about climate change. Learn how honeybees pollinate over 130 crops in the United States each year and what NASA is doing to help study the decline in bee populations.

Join engineers at NASA and astronauts on board the International Space Station to learn about the importance of recycling. Find out how NASA is solving the challenge of giving astronauts water to use without wasting any with the new Water Recovery System.