NASA Goddard Helps Ensure Asteroid Deflector Hits Target, Predicts and Will Observe Impact Results

Double Asteroid Redirection Test (DART) spacecraft at Didymos. (Credit: NASA)

GREENBELT, Md. (NASA PR) — Although the chance of an asteroid impacting Earth is small, even a relatively small asteroid of about 500 feet (about 150 meters) across carries enough energy to cause widespread damage around the impact site. NASA leads efforts in the U.S. and worldwide both to detect and track potentially hazardous asteroids and to study technologies to mitigate or avoid impacts on Earth. If an asteroid were discovered and determined to be on a collision course with Earth, one response could be to launch a “kinetic impactor” – a high-velocity spacecraft that would deflect the asteroid by ramming into it, altering the asteroid’s orbit slightly so that it misses Earth. NASA’s Double Asteroid Redirection Test (DART) will be the first mission to demonstrate asteroid deflection using a kinetic impactor. 

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Planetary Defense: Italy’s LICIACube Flies with DART Toward a Collision with an Asteroid

LICIACube (Credit: Argotec)

The journey into deep space of the satellite of the Italian Space Agency’s LICIACube satellite has begun.

ROME (ASI PR) — The first planetary defense mission of NASA DART, which carries the LICIACube satellite built by Argotec, in collaboration and with the contribution of the Italian Space Agency (ASI), was launched as scheduled on Nov. 24 at 07.21 Italian time from Vandenberg Space Force Base in California.

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NASA, SpaceX Launch DART: First Test Mission to Defend Planet Earth

The SpaceX Falcon 9 rocket launches with the Double Asteroid Redirection Test, or DART, spacecraft onboard, Tuesday, Nov. 23, 2021, Pacific time (Nov. 24 Eastern time) from Space Launch Complex 4E at Vandenberg Space Force Base in California. DART is the world’s first full-scale planetary defense test, demonstrating one method of asteroid deflection technology. The mission was built and is managed by Johns Hopkins APL for NASA’s Planetary Defense Coordination Office. (Credit: NASA/Bill Ingalls)

VANDENBERG SPACE FORCE BASE, Calif. (NASA PR) — NASA’s Double Asteroid Redirection Test (DART), the world’s first full-scale mission to test technology for defending Earth against potential asteroid or comet hazards, launched Wednesday at 1:21 a.m. EST on a SpaceX Falcon 9 rocket from Space Launch Complex 4 East at Vandenberg Space Force Base in California.

Just one part of NASA’s larger planetary defense strategy, DART – built and managed by the Johns Hopkins Applied Physics Laboratory (APL) in Laurel, Maryland – will impact a known asteroid that is not a threat to Earth. Its goal is to slightly change the asteroid’s motion in a way that can be accurately measured using ground-based telescopes.

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DART on Target – Six Questions with Mission Manager Clayton Kachele

DART mission (Credit: Johns Hopkins Applied Physics Laboratory)

Editor’s Note: DART is scheduled to launch from Vandenberg on Nov. 23 at 10:21 p.m. PST (Nov. 24 at 1:21 a.m. EST). NASA will stream the launch live on its website. 

By Wayne Smith
NASA Marshall Space Flight Center

It sounds like a plot for a movie but protecting Earth from a potential impact by a hazardous asteroid is the objective of an upcoming NASA mission.

The Double Asteroid Redirection Test (DART) mission is a planetary defense-driven test of technologies for mitigating such a threat. DART’s target asteroid is not a threat to Earth. The DART spacecraft launch window opens Nov. 24. It will launch aboard a SpaceX Falcon 9 rocket from Vandenberg Air Force Base in California.

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NASA TV to Air DART Prelaunch Activities, Launch

Double Asteroid Redirection Test (DART) spacecraft at Didymos. (Credit: NASA)

VANDENBERG SPACE FORCE BASE, Calif. (NASA PR) — NASA will provide coverage of the upcoming prelaunch and launch activities for the agency’s first planetary defense test mission, the Double Asteroid Redirection Test (DART). The mission will help determine if intentionally crashing a spacecraft into an asteroid is an effective way to change its course. DART’s target asteroid is not a threat to Earth.

DART is scheduled to launch no earlier than 1:20 a.m. EST Wednesday, Nov. 24 (10:20 p.m. PST Tuesday, Nov. 23) on a SpaceX Falcon 9 rocket from Vandenberg Space Force Base in California.

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

Inside a cleanroom at Johns Hopkins APL, the DART spacecraft being moved into a specialized shipping container that headed across the country to Vandenberg Space Force Base near Lompoc, California, where DART is scheduled to launch from late next month. (Credits: NASA/Johns Hopkins APL/Ed Whitman)

VANDENBERG SPACE FORCE BASE, Calif. (NASA PR) — Just two days after leaving the Johns Hopkins Applied Physics Laboratory (APL) in Laurel, Maryland, in a specialized container carefully strapped to the deck of a semi-trailer truck, NASA’s Double Asteroid Redirection Test (DART) spacecraft arrived in California — its final stop here on Earth. 

The truck, spacecraft and a small motorcade of APL engineers and technicians pulled into Vandenberg Space Force Base near Lompoc, California, on Saturday, Oct. 2, in the early afternoon local time. 

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ESA Scales Up Planetary Defense Facilities

Europe’s Planetary Defenders settle into their new home. (Credit: ESA)

FRASCATI, Italy (ESA PR) — The new heart of ESA’s Planetary Defence Office was inaugurated today, heralding a new chapter in the Agency’s work to protect Earth from dangerous near-Earth objects, aka asteroids.

For years, ESA has been dedicated to opening our eyes to hazards in space, and when it came to asteroids this meant ensuring Europe had the capability to detect, track and understand what’s out there.

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NASA Spacecraft Provides Insight into Asteroid Bennu’s Future Orbit

This mosaic image of asteroid Bennu is composed of 12 PolyCam images collected on Dec. 2, 2018, by the OSIRIS-REx spacecraft from a range of 15 miles (24 km). (Credits: NASA/University of Arizona)

WASHINGTON (NASA PR) — In a study released Wednesday, NASA researchers used precision-tracking data from the agency’s Origins, Spectral Interpretation, Resource Identification, Security-Regolith Explorer (OSIRIS-REx) spacecraft to better understand movements of the potentially hazardous asteroid Bennu through the year 2300, significantly reducing uncertainties related to its future orbit, and improving scientists’ ability to determine the total impact probability and predict orbits of other asteroids.

The study, titled “Ephemeris and hazard assessment for near-Earth asteroid (101955) Bennu based on OSIRIS-REx data,” was published in the journal Icarus.

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NASA Analysis: Earth Is Safe From Asteroid Apophis for 100-Plus Years

These images of asteroid Apophis were recorded by radio antennas at the Deep Space Network’s Goldstone complex in California and the Green Bank Telescope in West Virginia. The asteroid was 10.6 million miles (17 million kilometers) away, and each pixel has a resolution of 127 feet (38.75 meters). (Credits: NASA/JPL-Caltech and NSF/AUI/GBO)

The near-Earth object was thought to pose a slight risk of impacting Earth in 2068, but now radar observations have ruled that out.

PASADENA, Calif. (NASA PR) — After its discovery in 2004, asteroid 99942 Apophis had been identified as one of the most hazardous asteroids that could impact Earth. But that impact assessment changed as astronomers tracked Apophis and its orbit became better determined.

Now, the results from a new radar observation campaign combined with precise orbit analysis have helped astronomers conclude that there is no risk of Apophis impacting our planet for at least a century.

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NASA Perseveres Through Pandemic to Complete Successful 2020

WASHINGTON (NASA PR) — In 2020, NASA made significant progress on America’s Moon to Mars exploration strategy, met mission objectives for the Artemis program, achieved significant scientific advancements to benefit humanity, and returned human spaceflight capabilities to the United States, all while agency teams acted quickly to assist the national COVID-19 response.

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A Second Cable Fails at NSF’s Arecibo Observatory in Puerto Rico

The UCF-managed Arecibo Observatory in the spring of 2019. (Credit: University of Central Florida)

Engineers are reviewing the new damage and assessing how to best stabilize the facility.

by Zenaida Gonzalez Kotala
University of Central Florida News

A main cable that supports the Arecibo Observatory broke Friday at 7:39 p.m. Puerto Rico time.

Unlike the auxiliary cable that failed at the same facility on Aug. 10, this main cable did not slip out of its socket. It broke and fell onto the reflector dish below, causing additional damage to the dish and other nearby cables. Both cables were connected to the same support tower. No one was hurt, and engineers are already working to determine the best way to stabilize the structure.

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Tiny Asteroid Buzzes by Earth – the Closest Flyby on Record

This illustration shows asteroid 2020 QG’s trajectory bending during its close approach to Earth. The asteroid is the closest known nonimpacting asteroid ever detected. (Credits: NASA/JPL-Caltech)

An SUV-size space rock flew past our planet over the weekend and was detected by a NASA-funded asteroid survey as it departed.

PASADENA, Calif. (NASA PR) — Near Earth Asteroids, or NEAs, pass by our home planet all the time. But an SUV-size asteroid set the record this past weekend for coming closer to Earth than any other known NEA: It passed 1,830 miles (2,950 kilometers) above the southern Indian Ocean on Sunday, Aug. 16 at 12:08 a.m. EDT (Saturday, Aug. 15 at 9:08 p.m. PDT).

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Broken Cable Damages Arecibo Observatory in Puerto Rico

The main collecting dish is among the world’s largest single-dish radio telescopes. The reflective dish is 1,000 feet in diameter, 167 feet deep, and covers an area of about 20 acres. (Credit: UCF)

ARECIBO, PR (University of Central Florida PR) — One of the auxiliary cables that helps support a metal platform in place above the Arecibo Observatory in Puerto Rico, broke on Monday (Aug. 10) causing a 100-foot-long gash on the telescope’s reflector dish. Operations at the UCF-managed observatory are stopped until repairs can be made.

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Comet NEOWISE Sizzles as It Slides by the Sun, Providing a Treat for Observers

Comet C/2020 F3 NEOWISE appears as a string of fuzzy red dots in this composite of several heat-sensitive infrared images taken by NASA’s Near-Earth Object Wide-field Infrared Survey Explorer (NEOWISE) mission on March 27, 2020. (Credits: NASA/JPL-Caltech)

PASADENA, Calif. (NASA PR) — A comet visiting from the most distant parts of our solar system is putting on a spectacular nighttime display. Named Comet C/2020 F3 NEOWISE, the comet made its once-in-our-lifetimes close approach to the Sun on July 3, 2020, and will cross outside Earth’s orbit on its way back to the outer parts of the solar system by mid-August.

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