Using Tethers to Protect Earth from Asteroid Impacts

These photos show the relative size of three asteroids that have been imaged at close range by spacecraft. Mathilde (37 x 29 miles) (left) was taken by the NEAR spacecraft on June 27, 1997. Images of the asteroids Gaspra (middle) and Ida (right) were taken by the Galileo spacecraft in 1991 and 1993, respectively. Image Credit: NASA/JPL/NEAR and Galileo missions

NEW YORK (Springer PR) — Our planet exists within the vicinity of thousands of Near-Earth Objects (NEOs), some of which — Potentially Hazardous Asteroids (PHAs) — carry the risk of impacting Earth causing major damage to infrastructure and loss of life. Methods to mitigate such a collision are highly desirable.

(more…)

ISRO, ARIES Sign MOU on Space Situational Awareness, Astrophysics Cooperation

BENGALURU, India (ISRO PR) — A Memorandum of Understanding (MoU) between Indian Space Research Organization (ISRO), Bengaluru and Aryabhatta Research Institute of Observational Sciences (ARIES), Nainital for cooperation in the field of Space Situational Awareness (SSA) and Astrophysics was signed by Shri.R. Umamaheswaran, Scientific Secretary, ISRO and Prof. (Dr.) Dipankar Banerjee, Director, ARIES through video at ISRO Headquarters and ARIES Headquarters on 4th June 2020. 

(more…)

DART Mission To Deflect Asteroid Moves Toward Early 2022 Launch

DART mission (Credit: Johns Hopkins Applied Physics Laboratory)

by Douglas Messier
Managing Editor

NASA’s planetary defense mission to deflect a small asteroid continues to move toward a February 2022 launch date while holding to its $313.9 million budget, according to a new assessment by the Government Accountability Office (GAO).

The Double Asteroid Redirection Test (DART) will fly to the binary asteroid Didymos and impact the smaller of the two bodies to assess techniques for deflecting dangerous asteroids on collision courses with Earth.

(more…)

University of Arizona Looks Toward Work on NASA’s Potential Asteroid-Hunting Space Telescope

Bi-static radar images of the binary asteroid 2017 YE5 from the Arecibo Observatory and the Green Bank Observatory on June 25. The observations show that the asteroid consists of two separate objects in orbit around each other. (Credit: Arecibo/GBO/NSF/NASA/JPL-Caltech)

TUCSON, Ariz. (University of Arizona PR) — The University of Arizona is spearheading work that would begin efforts to construct a space-based infrared telescope that could provide the capabilities NASA needs to search for asteroids and comets that pose impact hazards to Earth, called near-Earth objects, or NEOs.

(more…)

Germany Invests 3.3 Billion Euros in European Space Exploration, Becomes ESA’s Largest Contributor

  • Three years after the last ESA Council Meeting at Ministerial Level, held in Lucerne, Switzerland, government representatives from the 22 Member States met in Seville, Spain, on 27 and 28 November 2019 and committed a total of almost 14.4 billion euro [$15.87 billion] for space programmes over the next few years.
  • Germany is contributing 3.3 billion euro [$3.6 billion] to ESA programmes focusing on Earth observation, telecommunications, technological advancement and commercialisation / NewSpace.
  • At 22.9 percent, Germany is now ESA’s largest contributor, followed by France (18.5 percent, 2.66 billion euro), Italy (15.9 percent, 2.28 billion euro) and the United Kingdom (11.5 percent, 1.65 billion euro).
  • The ESA Council Meeting at Ministerial Level is the highest political decision-making body, and it defines the content and financial framework for ESA’s space programmes every two to three years.
(more…)

NASA Plans Space Telescope to Hunt for Killer Asteroids

Asteroids and comets visited by spacecraft. (Credit: Planetary Society – Emily Lakdawalla)

by Douglas Messier
Managing Editor

NASA announced on Monday that it is planning to spend $500 to $600 million to develop the NEO Surveillance Mission that would begin hunting for large asteroids and comets that could strike Earth.

Thomas Zurbuchen, associate administrator for the Science Mission Directorate, made the announcement during a meeting of the Planetary Science Advisory Committee held in Washington, D.C. NASA’s Jet Propulsion Laboratory (JPL) would lead the project, which would launch around 2025.

(more…)

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.

(more…)

New NAS Report Recommends NASA Build Space-Based Infrared Telescopes to Detect Near-Earth Asteroids

Asteroid Ryugu with north polar boulder (Credit: JAXA, University of Tokyo, Kochi University, Rikkyo University, Nagoya University, Chiba Institute of Technology, Meiji University, University of Aizu and AIST)

WASHINGTON (NAS PR) — The likelihood of a large asteroid hitting Earth in any given year, or even over one’s lifetime, is very small. However, the consequences of such a strike would be great. Detecting near-Earth objects (NEOs), determining their orbits, and estimating their mass is critical knowledge necessary to quantify their destructive potential.

A new report titled, Finding Hazardous Asteroids Using Infrared and Visible Wavelength Telescopes , from the National Academies of Sciences, Engineering, and Medicine analyzes the advantages and disadvantages of telescope capabilities in detecting NEOs and says that space-based infrared NEO survey telescopes are more effective than visible wavelength telescopes, provide diameter information that visible wavelength telescopes cannot provide, and do not cost significantly more than in-space visible wavelength telescopes.

The report also says that if NASA develops a space-based infrared NEO survey telescope, it should also continue to fund both short- and long-term ground-based observations to refine estimates of the orbits and physical properties of NEOs, which helps to assess the risk they might pose to Earth.











Airbus Celebrates International Asteroid Day with Vigilance

TOULOUSE, France (Airbus PR) — As the world observes International Asteroid Day – established by the United for global awareness about asteroids – Airbus continues its leadership in a multinational European programme that could help humanity to protect itself from future impact hazards posed by these space objects.

(more…)











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.”











GAO: NASA Asteroid Impact Mission Faces Technical, Schedule Challenges

DART spacecraft (Credit: JHU APL)

by Douglas Messier
Managing Editor

NASA’s ambitious effort to redirect a small asteroid has run into challenges with its financing, technology and foreign partner that could delay its launch and reduce its scientific return, according to a new assessment by the Government Accountability Office (GAO).

The Double Asteroid Redirection Test (DART) will impact the smaller of the binary near-Earth asteroid Didymos. Scientists will study how the asteroid is deflected to learn how similar systems might be used on potentially hazardous near-Earth objects.

(more…)











A Closer Look at NASA’s FY 2018 Budget


by Douglas Messier
Managing Editor

Despite a last minute threat of a veto, President Donald Trump signed an $1.3 trillion omnibus spending bill on Friday that boosts NASA spending by about $1.1 billion to $20.7 billion.

So, with the fiscal year nearly half over, let’s take a closer look at NASA’s FY 2018 budget, which the Administration had tried to cut. The table below lays out the numbers from the omnibus bill, the Administration’s request and the FY 2017 budget.

(more…)











Report Examines Benefits of Settling Space Using NEO Resources

TransAstra Corporation recently completed an in-depth study of how to use resources from near Earth objects to facilitate space exploration and settlement.

The 82-page report, “Stepping Stones: Economic Analysis of Space Transportation Supplied From NEO Resources,” was funded with a $100,000 grant from NASA’s Innovative Advanced Concepts (NIAC) program.

(more…)











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.

(more…)











Mechanism Underlying Size-Sorting of Rubble on Asteroid Itokawa Revealed

Asteroid Itokawa (Credit: JAXA)

By Greta Keenan
Okinawa Institute of Science and Technology

In 2005, the Hayabusa spacecraft developed by the Japan Aerospace Exploration Agency (JAXA) landed on Itokawa, a small near-Earth asteroid named after the famous Japanese rocket scientist Hideo Itokawa. The aim of the unmanned mission was to study the asteroid and collect a sample of material to be returned to Earth for analysis. Contrary to scientific predictions that small asteroids are barren nuggets of rock, photographs taken by the Hayabusa spacecraft revealed that the surface of Itokawa is strewn with different sized particles. Even more puzzling was the lateral separation of small and large particles – with large boulders occupying the highlands and small pebbles occupying the lowlands.

(more…)