Katie Harris (she/her)
Career Profiles
Medical Student/Prospective Aerospace Medicine Specialist
Let's Talk Mars Resources
Backgrounders
Discover a set of resources to get you up to speed on the discussion surrounding Mars
Home Sweet Home In Space
Backgrounders
Learn about the history of space stations and how they help us learn about space.
Destination Mars
Backgrounders
Discover how space agencies have explored the Red Planet in the past and present and learn about the future of human spaceflight to the red planet.
Soil on Mars
Backgrounders
Learn how soil is different on Mars than on Earth, and what that means for growing plants on the red planet.
Let's Talk Lunar Resources
Backgrounders
Discover some background information on how we'll learn to live and work on the Moon - and beyond!
Earth vs. Mars
Backgrounders
Learn about the characteristics of the Earth and Mars, two planets in our Solar System.
Exploration of the Planets in the Solar System
Backgrounders
Learn about how spacecraft have helped us learn about our Solar System.
Meet Our Dwarf Planets
Backgrounders
Learn about the dwarf planets in our Solar System.
The Outer Solar System
Backgrounders
Learn about the amazing planets and moons of the outer Solar System.
Thomas Graham
Career Profiles
Research Scientist, Space Farming
Why is it colder in the winter even though the Earth is closer to the Sun?
Hands-on Activities
Learn why we have seasons in this hands on activity.
What is your weight on another planet?
Hands-on Activities
Do you weigh the same on Jupiter as you do on Earth? Learn to calculate your weight on a different planet.
What would happen if a meteor hit Earth?
Hands-on Activities
Explore the effects of asteroid impacts in this hands on activity.
The Inner Solar System
STEM Explained
Earth is covered in rocks. So are Mercury, Venus, Mars and the Moon. Does that mean the rocky planets are all the same?