Explore the engineering, materials, and life-support systems needed to build safe, long-lasting human habitats on Mars.

Discover why Mars is so cold, from its thin atmosphere to its distance from the Sun and weak greenhouse effect.

Mars radiation is one of the biggest barriers to human exploration. Here is how it affects the body, what astronauts may face, and how missions can reduce risk.

Learn how rockets reach space, from liftoff and staging to orbital velocity, guidance, and reentry constraints.

Learn why telescope observations need planning, from target visibility and weather to equipment setup, observing efficiency, and data quality.

Learn how to read space telescope images by identifying colors, filters, scale, and processing choices behind every striking view.

Discover why nations collaborate on the ISS, how the partnership works, and what each country gains from sharing a station in orbit.

Discover how NASA launched its first human mission, from rocket selection and launch countdown to Alan Shepard’s historic flight.

NASA studies Earth from space to measure climate, weather, ecosystems, and human impacts with global precision impossible from the ground.

Learn space science through astronomy, physics, missions, data tools, and hands-on projects with a clear, beginner-friendly path.