Expanding the frontiers of space science and technology
Since the dawn of the Space Age, APL has expanded the frontiers of space science and technology. We took the first picture of Earth from space, invented satellite navigation, dispatched spacecraft across the solar system, and demonstrated technology to advance our nation’s security.
Featured Mission
IMAP →NASA’s Interstellar Mapping and Acceleration Probe (IMAP) mission, which APL is building in partnership with Principal Investigator David McComas of Princeton University, will explore our solar neighborhood, called the heliosphere — decoding the messages in particles from the Sun and beyond our cosmic shield.
See More of APL’s Work Across the Solar System
Explore the Destinations MapAt a Glance
70+ Spacecraft Built to Explore the Solar System
325+ Instruments Operated to Better Understand Our Place Among the Stars
9 Classical Planets Explored
1 Sun Touched
1 Celestial Body Moved
Focus Areas
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 our people.
Dragonfly Outer Moons
IMAP Interstellar Medium
Parker Solar Probe Sun and Solar Wind
Initiatives
APL’s scientists and engineers are leading and developing initiatives that will facilitate the exploration of the Moon and that could define the future of space exploration.
Lunar Surface Innovation Initiative Moon
Ice Giant Research and Exploration Giant Planets
Enabling the Next Generation of Space Operator Earth
Science
Space Science Snapshots
At APL, our space scientists and engineers strive every day to break new ground. Check out these snapshots of their innovative work, which are helping to inform policymakers, cut the costs of exploration, and push the boundaries of space and planetary science.
EIS Outer Moons
DraGMet Outer Moons
JoEE/JENI Outer Moons
Education and Outreach
A highly selective U.S. Space Force program designed for military officers, government civilians, and partner nation students through a tailored track within the Johns Hopkins SAIS Master of International Public Policy degree.
As part of this collaboration, APL provides state-of-the-art facilities where Space Force leaders can collaborate on world-class research and development projects, as well as access to specialized facilities for work related to their national security missions.
Krimigis Postdoctoral Scholars Program →
The Krimigis Postdoctoral Scholars Program provides extraordinary scientists with the opportunity to engage in cutting-edge projects designed to advance the future of space science.
Summer Center for Space Science →
Students in grades 6-8 work in teams alongside APL scientists and engineers who have designed and built space missions for NASA.
Our Organization
Learn more about how we lead missions from design and build through operations and data delivery.
Space Formulation
Leaning forward to take on the challenges of the future
National Security Space
Space solutions to critical military problems
Labs and Facilities
Our Facilities
APL is recognized as a leader in mission design and navigation; instrument development; mechanical engineering; mechanical design, thermal, and instrument accommodation; communications hardware; electrical subsystems and power; precision timekeeping devices, mission operations, and scientific research. Our facilities are essential to support our spaceflight build process and scientific discoveries.
Related News
Apr 16, 2025
Johns Hopkins APL Develops Engineering Guide for Lunar Explorers
Mar 25, 2025
Parker Solar Probe Team Wins 2024 Collier Trophy
