Clockwise from top left are three of the observatories that participated in a 2021 planetary defense exercise: NASA’s Goldstone planetary radar, the Mount Lemmon telescope of the Catalina Sky Survey, and NASA’s NEOWISE mission. At bottom left is an illustration of the path of Apophis’ close approach in 2029. (Credits: NASA/JPL-Caltech/University of Arizona)
Over 100 participants from 18 countries – including NASA scientists and the agency’s NEOWISE mission – took part in the international exercise.
PASADENA, Calif. (NASA PR) — Watching the skies for large asteroids that could pose a hazard to the Earth is a global endeavor. So, to test their operational readiness, the international planetary defense community will sometimes use a real asteroid’s close approach as a mock encounter with a “new” potentially hazardous asteroid. The lessons learned could limit, or even prevent, global devastation should the scenario play out for real in the future.
This photograph taken by an International Space Station astronaut shows a bright meteor from the Perseid meteor shower in Earth’s atmosphere. The brightest meteors are known as fireballs, or bolides. (Credit: NASA)
Hosted by JPL’s Center for Near Earth Object Studies, the data can be used by the science community to better understand how asteroids break up when entering the atmosphere.
PASADENA, Calif. (NASA PR) — An agreement between NASA and the U.S. Space Force recently authorized the public release of decades of data collected by U.S. government sensors on fireball events (large bright meteors also known as bolides) for the benefit of the scientific and planetary defense communities. This action results from collaboration between NASA’s Planetary Defense Coordination Office (PDCO) and the U.S. Space Force to continue furthering our nation’s efforts in planetary defense, which include finding, tracking, characterizing, and cataloguing near-Earth objects (NEOs). The newly released data is composed of information on the changing brightness of bolides as they pass through Earth’s atmosphere, called light curves, that could enhance the planetary defense community’s current ability to model the effects of impacts by larger asteroids that could one day pose a threat to Earth.
Invited guests and NASA employees take photos as NASA’s Space Launch System (SLS) rocket with the Orion spacecraft aboard is rolled out of High Bay 3 of the Vehicle Assembly Building for the first time, Thursday, March 17, 2022, at NASA’s Kennedy Space Center in Florida. Ahead of NASA’s Artemis I flight test, the fully stacked and integrated SLS rocket and Orion spacecraft will undergo a wet dress rehearsal at Launch Complex 39B to verify systems and practice countdown procedures for the first launch. (Credit: NASA/Aubrey Gemignani)
by David Bullock Staff Writer
The White House has proposed hiking NASA’s budget by nearly $2 billion to $26 billion for fiscal year 2023 as the space agency gears up for an uncrewed flight test of a new rocket and spacecraft designed to help return astronauts to the moon for the first time in 50 years.
This animation shows asteroid 2022 EB5’s predicted orbit around the Sun before impacting into the Earth’s atmosphere on March 11, 2022. The asteroid – estimated to be about 6 ½ feet (2 meters) wide – was discovered only two hours before impact. (Credit: NASA/JPL-Caltech)
PASADENA, Calif. (NASA PR) — Asteroid 2022 EB5 was too small to pose a hazard to Earth, but its discovery marks the fifth time that any asteroid has been observed before impacting into the atmosphere.
A small asteroid hit Earth’s atmosphere over the Norwegian Sea before disintegrating on March 11, 2022. But this event wasn’t a complete surprise: Astronomers knew it was on a collision course, predicting exactly where and when the impact would happen.
From left to right: Sutherland ATLAS station during construction in South Africa. Credit: Willie Koorts (SAAO); Chilean engineers and astronomers installing the ATLAS telescope at El Sauce Observatory. Credit: University of Hawaii; Illustration of NASA’s DART spacecraft and the Italian Space Agency’s (ASI) LICIACube prior to impact at the Didymos binary system. Credits: NASA/Johns Hopkins, APL/Steve Gribben; Illustration of the NEO Surveyor spacecraft.
WASHINGTON (NASA PR) — The NASA-funded Asteroid Terrestrial-impact Last Alert System (ATLAS)—a state-of-the-art asteroid detection system operated by the University of Hawaiʻi (UH) Institute for Astronomy (IfA) for the agency’s Planetary Defense Coordination Office (PDCO)—has reached a new milestone by becoming the first survey capable of searching the entire dark sky every 24 hours for near-Earth objects (NEOs) that could pose a future impact hazard to Earth. Now comprised of four telescopes, ATLAS has expanded its reach to the southern hemisphere from the two existing northern-hemisphere telescopes on Haleakalā and Maunaloa in Hawai’i to include two additional observatories in South Africa and Chile.
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.
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.
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.
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.
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.
