Planetary Defense Exercise Uses Apophis as Hazardous Asteroid Stand-In

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.

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Asteroid Institute Uses Revolutionary Cloud-Based Astrodynamics Platform to Discover and Track Asteroids

Demonstrating a new era of software-driven asteroid discovery

Asteroid Discovery Analysis and Mapping (ADAM) platform architecture. (Image Credit: B612 Asteroid Institute)

SAN FRANCISCO (B612 Foundation PR) — The Asteroid Institute, a program of B612 Foundation, today announced it is using a groundbreaking computational technique running on its Asteroid Discovery Analysis and Mapping (ADAM) cloud-based astrodynamics platform to discover and track asteroids. The Minor Planet Center has confirmed and added the first 104 of these newly discovered asteroids to its registry, thus opening the door for Asteroid Institute-supported researchers to submit thousands of additional new discoveries. 

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Global Citizen Science Project Finds Over 1700 Asteroid Trails in Hubble Images

[Credit: ESA/Hubble & NASA, S. Kruk (ESA/ESTEC), Hubble Asteroid Hunter citizen science team, M. Zamani (ESA/Hubble)]

PARIS (ESA PR) — Combining artificial intelligence with many keen human eyes, astronomers have found 1,701 new asteroid trails in archival data from the NASA/ESA Hubble Space Telescope, consisting of more than 37,000 images that span two decades. The project reflects both Hubble’s value to scientists as an asteroid hunter and how the public can effectively contribute to citizen science initiatives.

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NASA System Predicts Impact of Small Asteroid

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.

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NASA’s Next-Generation Asteroid Impact Monitoring System Goes Online

This diagram shows the orbits of 2,200 potentially hazardous objects as calculated by JPL’s Center for Near Earth Object Studies (CNEOS). Highlighted is the orbit of the double asteroid Didymos, the target of NASA’s Double Asteroid Redirect Test (DART) mission. (Credits: NASA/JPL-Caltech)

The new system improves the capabilities of NASA JPL’s Center for Near Earth Object Studies to assess the impact risk of asteroids that can come close to our planet.

PASADENA, Calif. (NASA PR) — To date, nearly 28,000 near-Earth asteroids (NEAs) have been found by survey telescopes that continually scan the night sky, adding new discoveries at a rate of about 3,000 per year. But as larger and more advanced survey telescopes turbocharge the search over the next few years, a rapid uptick in discoveries is expected. In anticipation of this increase, NASA astronomers have developed a next-generation impact monitoring algorithm called Sentry-II to better evaluate NEA impact probabilities.

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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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Newly Named Asteroids Reflect Contributions of Pioneering Astronauts

In this image from 2003, retired astronaut Joan Higginbotham took a break from training for the STS-116 mission and is shown in front of a NASA T-38 trainer. (Credits: NASA)

GREENBELT, Md. (NASA PR) — Twenty-seven asteroids have been named in honor of African American, Hispanic, and Native American astronauts, and one cosmonaut, who have helped expand our horizons beyond Earth and to inspire the next generation of space explorers.

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4,000th Comet Discovered by ESA & NASA Solar Observatory

The 4,000th comet discovered by ESA (European Space Agency) and NASA’s SOHO observatory is seen here in an image from the spacecraft alongside SOHO’s 3,999th comet discovery. The two comets are relatively close at approximately 1 million miles apart, suggesting that they could have been connected together as recently as a few years ago. Credits: ESA/NASA/SOHO/Karl Battams

By Sarah Frazier
NASA’s Goddard Space Flight Center

GREENBELT, Md. — On June 15, 2020, a citizen scientist spotted a never-before-seen comet in data from the Solar and Heliospheric Observatory, or SOHO — the 4,000th comet discovery in the spacecraft’s 25-year history.  

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Newly Discovered Comet Is Likely Interstellar Visitor

Comet C/2019 Q4 as imaged by the Canada-France-Hawaii Telescope on Hawaii’s Big Island on Sept. 10, 2019. (Credits: Canada-France-Hawaii Telescope)

PASADENA, Calif. (NASA PR) — A newly discovered comet has excited the astronomical community this week because it appears to have originated from outside the solar system. The object — designated C/2019 Q4 (Borisov) — was discovered on Aug. 30, 2019, by Gennady Borisov at the MARGO observatory in Nauchnij, Crimea. The official confirmation that comet C/2019 Q4 is an interstellar comet has not yet been made, but if it is interstellar, it would be only the second such object detected. The first, ‘Oumuamua, was observed and confirmed in October 2017.

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