NASA, FEMA, International Partners Plan Asteroid Impact Exercise

Asteroids compared to Didymoon (Credit: Ian Carnelli adapting Planetary Society – E. Lakdawalla image)

WASHINGTON (NASA PR) — While headlines routinely report on “close shaves” and “near-misses” when near-Earth objects (NEOs) such as asteroids or comets pass relatively close to Earth, the real work of preparing for the possibility of a NEO impact with Earth goes on mostly out of the public eye.

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Rosetta’s Comet Sculpted by Stress

Single frame enhanced NavCam image taken on 27 March 2016, when Rosetta was 329 km from the nucleus of Comet 67P/Churyumov-Gerasimenko. The scale is 28 m/pixel and the image measures 28.7 km across. (Credit:  ESA/Rosetta/NavCam)

18 February 2019

MARSEILLE, France (ESA PR) — Feeling stressed? You’re not alone. ESA’s Rosetta mission has revealed that geological stress arising from the shape of Comet 67P/Churyumov–Gerasimenko has been a key process in sculpting the comet’s surface and interior following its formation.

Small, icy comets with two distinct lobes seem to be commonplace in the Solar System, with one possible mode of formation a slow collision of two primordial objects in the early stages of formation some 4.5 billion years ago. A new study using data collected by Rosetta during its two years at Comet 67P/C-G has illuminated the mechanisms that contributed to shaping the comet over the following billions of years.

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Massive Impact Crater from a Kilometer-wide Iron Meteorite Discovered in Greenland

COPENHAGEN (University of Copenhagen PR) — An international team lead by researchers from the Centre for GeoGenetics at the Natural History Museum of Denmark, University of Copenhagen have discovered a 31-km wide meteorite impact crater buried beneath the ice-sheet in the northern Greenland. This is the first time that a crater of any size has been found under one of Earth’s continental ice sheets. The researchers worked for last three years to verify their discovery, initially made in the 2015. The research is described in a new study just published in the internationally recognized journal Science Advances.

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Cosmic Detective Work: Why We Care About Space Rocks

This artist’s concept depicts the spacecraft of NASA’s Psyche mission near the mission’s target, the metal asteroid Psyche. (Credits: NASA/JPL-Caltech/Arizona State Univ./Space Systems Loral/Peter Rubin)

By Elizabeth Landau
NASA

The entire history of human existence is a tiny blip in our solar system’s 4.5-billion-year history. No one was around to see planets forming and undergoing dramatic changes before settling in their present configuration. In order to understand what came before us — before life on Earth and before Earth itself — scientists need to hunt for clues to that mysterious distant past.

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MASCOT’s Asteroid Landing – Preparations, Risks and Last-minute Decisions

Asteroid Ryugu photographed by Japan’s Hayabusa2 spacecraft. (Credit: JAXA)

COLOGNE, Germany (DLR PR) — Scientists and engineers have been waiting nearly four years for the Japanese Hayabusa2 spacecraft – which is carrying the Mobile Asteroid Surface Scout (MASCOT) lander that was developed and constructed by the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR) – to reach its destination: the asteroid Ryugu. With the approach and arrival having taken place on 27 June 2018, the landing is now within reach.

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Russian Nuclear Agency Explores How to Prevent Armageddon

Bruce Willis in Armageddon.

Tass reports that Russia’s state nuclear corporation, Rosatom, is exploring ways to blow up asteroids before they blow us up.

“Our study is only a part of the quest to create an asteroid protection system. The priorities here are detection, classification and high-precision monitoring of a celestial body. After that, a bomb should be designed, which would be safe enough during the launch. A carrier rocket will have to be designed, too,” said Vladimir Rogachev, the deputy head of the laser physics institute at the Russian Federal Nuclear Center (VNIIEF), part of the Rosatom corporation.

“This is an international task of impressive scope. We have something to offer. But there are also things that we need to borrow,” he went on.

“Regretfully, international politics and the current state of international relations necessitate a different format of communications, so we have to wait. But we should not procrastinate: when a dangerous asteroid approaches the Earth, it will be too late,” the researcher added.

Rogachev said that VNIIEF scientists have “baked” an artificial chondrite, the most popular type of asteroids, to study its qualities. According to their calculations, if a 200-meter asteroid approaches the Earth, a rocket should be launched approximately a month before the planned impact, to smash the celestial body into small parts that would burn upon entering the atmosphere.

“Yes, some parts will reach the surface of the planet, but, due to their small size, there will be no apocalypse,” he said. “This technology would be sufficient to destroy an object similar to the Tunguska meteor.”

Interstellar Visitor is Really a Comet Not an Asteroid

Artist impression of ‘Oumuamua (Credit: ESA/Hubble, NASA, ESO, M. Kornmesser)

PARIS (ESA PR) — An object from another star system that made a brief appearance in our skies guised as an asteroid turns out to be a tiny interstellar comet.

‘Oumuamua, a name that reflects the Hawaiian meaning for ‘a messenger from afar, arriving first’, was discovered by astronomers working with the Pan-STARRS survey in Hawaii in October last year as the object came close to Earth’s orbit. Follow-up observations by ESA’s Optical Ground Station telescope in Tenerife, Canary Islands, and other telescopes around the world helped determine its trajectory.

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NASA’s NEOWISE Asteroid-Hunter Spacecraft Releases Fourth Years of Survey Data

NEOWISE (Credit; NASA)

PASADENA, Calif. (NASA PR) — NASA’s Near-Earth Object Wide-field Infrared Survey Explorer (NEOWISE) mission has released its fourth year of survey data. Since the mission was restarted in December 2013, after a period of hibernation, the asteroid- and comet-hunter has completely scanned the skies nearly eight times and has observed and characterized 29,375 objects in four years of operations. This total includes 788 near-Earth objects and 136 comets since the mission restart.

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NASA Invests in Concept Development for Missions to Comet, Saturn Moon Titan

CAESAR (Comet Astrobiology Exploration SAmple Return) spacecraft. (Credit: NASA)

WASHINGTON, DC (NASA PR) — NASA has selected two finalist concepts for a robotic mission planned to launch in the mid-2020s: a comet sample return mission and a drone-like rotorcraft that would explore potential landing sites on Saturn’s largest moon, Titan.

The agency announced the concepts Wednesday, following an extensive and competitive peer review process. The concepts were chosen from 12 proposals submitted in April under a New Frontiers program announcement of opportunity.

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NASA’s Asteroid-Hunting Spacecraft is a Discovery Machine

PASADENA, Calif. (NASA PR) — NASA’s Near-Earth Object Wide-field Infrared Survey Explorer (NEOWISE) mission has released its third year of survey data, with the spacecraft discovering 97 previously unknown celestial objects in the last year. Of those, 28 were near-Earth objects, 64 were main belt asteroids and five were comets.

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NASA Receives 12 Proposals for Solar System Exploration Missions


WASHINGTON, DC (NASA PR) — NASA has received and is reviewing 12 proposals for future unmanned solar system exploration. The proposed missions of discovery – submitted under NASA’s New Frontiers program – will undergo scientific and technical review over the next seven months. The goal is to select a mission for flight in about two years, with launch in the mid-2020s.

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NASA Selects Honeybee Robotics for Six Small Business Awards

The green oval highlights the plumes Hubble observed on Europa. The area also corresponds to a warm region on Europa’s surface. The map is based on observations by the Galileo spacecraft (Credits: NASA/ESA/STScI/USGS)

Honeybee Robotics will begin developing new technologies that would allow a lander to drill into the icy surface of Jupiter’s moon Europa and collect samples for analysis with the help of a pair of NASA small business awards.

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NIAC Phase II Award: Laser Spectroscopy System for Probing Asteroids, Comets

Remote Laser Evaporative Molecular Absorption Spectroscopy Sensor System. (Credit: Gary Hughes)

Remote Laser Evaporative Molecular Absorption Spectroscopy Sensor System

Gary Hughes
California Polytechnic State University
San Luis Obispo, Calif.

Amount: up to $500,000
Length of Study: 2 years

Description

We propose a sensor system capable of remotely probing the molecular composition of cold solar system targets (asteroids, comets, planets, moons), such as from a spacecraft orbiting the target.

The spacecraft would be equipped with a high-power laser and an infrared spectrometer, both powered by photovoltaics. The laser is directed at a spot on the target, with central flux in the 10 MW/ m2 range.

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Rosetta Mission Ends With Controlled Impact on Comet

Sequence of images captured by Rosetta during its descent to the surface of Comet 67P/C-G on 30 September. (Credit: ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA)
Sequence of images captured by Rosetta during its descent to the surface of Comet 67P/C-G on 30 September. (Credit: ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA)

DARMSTADT, Germany, 30 September 2016 (ESA PR) — ESA’s historic Rosetta mission has concluded as planned, with the controlled impact onto the comet it had been investigating for more than two years.

Confirmation of the end of the mission arrived at ESA’s control centre in Darmstadt, Germany at 11:19 GMT (13:19 CEST) with the loss of Rosetta’s signal upon impact.

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NASA TV to Air Rosetta Descent to Comet on Friday

Comet 67P on June 25, 2015 from Rosetta. (Credit: ESA/Rosetta/NAVCAM)
Comet 67P on June 25, 2015 from Rosetta. (Credit: ESA/Rosetta/NAVCAM)

WASHINGTON (NASA PR) — NASA Television and the agency’s website will air the conclusion of ESA’s (European Space Agency’s) Rosetta mission from 6:15 to 8 a.m. EDT Friday, Sept. 30, with NASA commentary, interviews and analysis of the successful mission. The Rosetta mission will end with the controlled decent of the spacecraft onto the surface of comet 67P/Churyumov-Gerasimenko at around 7:20 a.m.

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