Because the ISS is dependent on Earth for its full life support needs, it is an open system. Scientists are working on creating a closed system using machinery and programs to recycle and reuse matter to maintain a supply of air, water, and food independent from Earth.
Grades K to 3
Grades K to 3
Astronauts traveling to Mars will need to grow some of their own food in order to survive and stay healthy. But on Mars will there be enough light to meet the needs of growing plants?
The Milestones in Space Plant Research timeline highlights the efforts of research agencies around the world to investigate the effects of the space environment on plant life. Follow the timeline from 1946 until the present day, where space plant research
4 images of different lunar phases showing the portion of the Moon lit by the Sun as the Moon orbits the Earth and as seen by us on Earth
Join Paxi on his journey to the Red Planet to investigate if Martians exist, and learn about the European Space Agency's ExoMars missions. (4:53 min.)
Join Paxi on a journey through our Solar System, from the rocky inner planets close to the Sun, past the giant planets to the freezing edge, the home of comets. (5:18 min.)
Japanese astronaut Kimiya Yui on board the International Space Station shows Paxi what it's like to prepare and eat food in weightlessness on the ISS.
In this European Space Agency's video, follow Paxi on his journey to Mars, where he will explore the planet's dry river beds, volcano, and polar ice caps. (5:06 min.)