Johns Hopkins Applied Physics Laboratory Civil Space

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We Lead Missions To Defend Earth

APL Leads the Double Asteroid Redirection Test (DART) — NASA's first planetary defense mission and demonstration of a method to deflect an asteroid. 

Read About DART

From The Sun to Pluto and Beyond

Our spacecraft and instruments have helped "touch" the Sun, measure and track Earth’s magnetosphere, search for ancient water on Mars, probe the mysteries of Pluto and measure the boundaries of our solar system before entering interstellar space. And those discoveries are just the beginning.

Explore APL’s Work

Our People

We are scientists, engineers, planners and dedicated professionals committed to exploring space and expanding humanity’s knowledge of the Sun-Earth system, our moon, the solar system and beyond. We do the impossible every day. Learn more about the people of APL Civil Space. 

Browse All APL Staff
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Science

Learn more about our research in planetary science, Earth science, heliophysics and astrophysics.
Science at APL
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Engineering

Learn more about our spacecraft and instruments as well as our mission design and operations teams who are helping to expand humanity’s understanding of the universe every day.
Engineering at APL

For the Media

Learn more about APL’s missions and discoveries — and the people who make it all happen. Use our Media Center to find high-resolution images and HD videos, receive detailed mission information, or contact a public affairs representative.