Double Asteroid
Redirection Test

NASA's first planetary
defense test mission

Mission Overview

DART is the first-ever space mission to demonstrate asteroid deflection by kinetic impactor.

Impactor Spacecraft

The DART impactor is a simple spacecraft, equipped with a camera and the ability to autonomously guide itself to impact the asteroid.

Planetary Defense

"Planetary defense" encompasses activities undertaken to understand the hazards posed to Earth by potential impacts of asteroids and comets and to develop approaches to prevent or minimize the effects of those impacts.

Become a

Planetary Defender

Support the DART mission by becoming a "Planetary Defender". Participants who take a short quiz earn a certificate and badge that they can download, print and share on social media.

DART, NASA's First Planetary Defense Test Mission

NASA's first test mission for planetary defense, the Double Asteroid Redirection Test (DART) seeks to test and validate a method to protect Earth in case of an asteroid impact threat. The DART mission shifted an asteroid's orbit through kinetic impact – specifically, by successfully smashing a spacecraft into the smaller member of the binary asteroid system Didymos.

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Seven Asteroids Are Named for DART Team Members

Johns Hopkins APL Communications Team Wins Gold for DART Impact Campaign

DART Mission Recognized for Aerospace Excellence

Fast Company Names Two Johns Hopkins APL Innovations as ‘World Changing Ideas’

Johns Hopkins APL’s DART Lead Ed Reynolds Named One of Time Magazine’s 100 Most Influential People

DART Team Earns National Space Club and Foundation Aerospace Award

NASA's DART Data Validates Kinetic Impact as Planetary Defense Method

Scientists Following a Dusty Tail to Shape the Story of DART’s Impact

DART Mission Earns Popular Science’s “Best of What’s New” for Pioneering Planetary Defense Capability

NASA Confirms DART Mission Impact Changed Asteroid’s Motion in Space

Webb, Hubble Capture Detailed Views of DART Impact

Bullseye! NASA’s DART Mission Impacts Asteroid Target in World First

DART’s Small Satellite Companion Tests Camera Prior to Dimorphos Impact

NASA Invites Media to Witness World’s First Planetary Defense Test

DART Tests Autonomous Navigation System Using Jupiter and Europa

DART’s Small Satellite Companion Takes Flight Ahead of Impact

DART Sets Sights on Asteroid Target

DART Team Confirms Orbit of Target Asteroid

NASA's DART Captures One of Night Sky's Brightest Stars

Johns Hopkins APL Named One of Fast Company’s Most Innovative Space Companies

With Its Single 'Eye,' NASA's DART Returns First Images From Space

NASA’s DART Spacecraft Launches in World’s First Planetary Defense Test Mission

APL DART Team Prepares for Launch of NASA’s First Planetary Defense Test Mission

DART Arrives at Vandenberg Space Force Base, Its Final Stop Before Launch

DART Gets Its CubeSat Companion, Its Last Major Piece

Smarter Navigation on NASA's Double Asteroid Redirection Test

DART Gets Its Wings: Spacecraft Integrated with Innovative Solar Array Technology and Camera

SMART Nav: Giving Spacecraft the Power to Guide Themselves

Behind the Scenes: Testing for Electromagnetic Interference on DART (ft. Ken Watson)

NASA Selects Four Scientists to Join the DART Planetary Defense Mission

Behind the Scenes: Outfitting the DART Spacecraft with Thermal Blankets, ft. Elisabeth Abel

NASA's First Planetary Defense Test Mission

Behind the Scenes: DART High Gain Antenna

DART Launch Moves to Secondary Window

DART Mission Heats Up, Enters Environmental Testing

Behind the Scenes: NEXT-C Ion Engine Installation on DART

DART Team Takes a Last Look at Asteroid Target Before Launch

DART Spacecraft Outfitted with Next-Gen Technology Demonstration Propulsion System

Behind the Scenes: Assembling the DART Spacecraft (feat. Mechanical Systems Engineer Betsy Congdon)

How to Build a Spacecraft to Save the World

This spacecraft is being readied for a one-way mission to deflect an asteroid

Predicting the Unpredictable - The Dynamics of DART's Dive Into an Asteroid

Staying Aligned During COVID-19: APL Propels Space Missions Forward

NASA's First Planetary Defense Mission Target Gets a New Name

NASA planetary defense efforts continue during pandemic

Johns Hopkins APL Receives DART Spacecraft Structure and Ramps Up Integration and Testing

Why NASA plans to slam a spacecraft into an asteroid

NASA’s First Planetary Defense Mission Readies for Integration and Testing at APL

NASA’s Plan to Stop an Asteroid Headed for Earth

Building a Brand

DART Receives First Flight Guidance and Control Sensor

DART Project Successfully Completes Critical Milestone

We’re going to slam a spacecraft into an asteroid to try to deflect it

A Launch Four Centuries in the Making

What's in the Box? DART Team Unpacks a Spacecraft

A Visit to SpaceX

Scientists turn up the spotlight on space perils (and prospects) for Asteroid Day

NBC News: Inside scientists’ new plan to deflect asteroids away from Earth

NASA’s First Planetary Defense Technology Demonstration to Collide with Asteroid in 2022

What if a killer asteroid were headed toward Earth? NASA plans to find out this week

Observing Didymos in 2019: Using Telescopes to Understand Our Target

DART Mission Set to Launch on SpaceX Falcon 9

Smart Teams + Smart Algorithms = SMART Nav

ESA plans mission to smallest asteroid ever visited

An asteroid could destroy humanity like it did dinosaurs. A Hopkins team has a plan to save the world.

Humanity Will Slam a Spacecraft into an Asteroid in a Few Years to Help Save Us All

What Could be More Exciting Than Crashing a Spacecraft Into an Asteroid?

Collision Course

Asteroids have been hitting the Earth for billions of years. In 2022, we hit back.

APL-Led Asteroid-Deflection Mission Passes Key Development Milestone

White House releases near Earth object action plan

Space scientists have big plans to avert an asteroid apocalypse

Course Corrector: Managers of proposed mission hope to protect Earth from giant space rocks

NASA Pushes Through with Asteroid Deflection Mission That Could One Day Save Earth

NASA Spacecraft Would Smash Into an Asteroid as a Dry Run for Saving the Planet

NASA unveils plan to test asteroid defense technique

NASA'S First Asteroid Deflection Mission Enters Next Design Phase at Johns Hopkins APL

Earth’s Best Defense Against Killer Asteroids Needs Cash

Can We Deflect Asteroids?

We really need to figure out how to stop a killer asteroid, scientists say

Space Scientists Rally Support for 2020 Asteroid-Deflection Mission

European Asteroid Mission Could Launch Soon, Target Space Rock Moves Near Earth

All DART News