NASA is taking steps to deal with the ultimate global disaster, a holocaust that could occur anytime from a few weeks to a few thousand years from now, but which has a significant probability of happening and that, in the distant past, already caused the mass extinction of planetary life, ending the reign of the dinosaurs.
The U.S. space agency is implementing an Asteroid Grand Challenge, designed to accelerate NASA’s efforts to locate potentially hazardous asteroids through non-traditional collaborations and partnerships. Part of the program will be to explore ways in which potentially hazardous asteroids could be deflected away from Earth.
NASA’s JPL facility has announced that it “has formalized its ongoing program for detecting and tracking near-Earth objects (NEOs) as the Planetary Defense Coordination Office (PDCO). … [It] will also take a leading role in coordinating interagency and intergovernmental efforts in response to any potential impact threats.”
NASA reports that more than 13,500 near-Earth objects of all sizes have been discovered to date — more than 95 percent of them since NASA-funded surveys began in 1998. About 1,500 NEOs are now detected each year.
According to John Grunesfeld, associate administrator for NASA’s Science Mission Directorate, “Asteroid detection, tracking and defense of our planet is something that NASA, its interagency partners, and the global community take very seriously. While there are no known impact threats at this time, the 2013 Chelyabinsk super-fireball and the recent ‘Halloween Asteroid’ close approach remind us of why we need to remain vigilant and keep our eyes to the sky. NASA has been engaged in worldwide planning for planetary defense for some time, and this office will improve and expand on those efforts, working with the Federal Emergency Management Agency (FEMA) and other federal agencies and departments.
“With more than 90 percent of NEOs larger than 3,000 feet (1 kilometer) already discovered, NASA is now focused on finding objects that are slightly bigger than a football field — 450 feet (140 meters) or larger. In 2005, NASA was tasked with finding 90 percent of this class of NEOs by the end of 2020. NASA-funded surveys have detected an estimated 25 percent of these mid-sized but still potentially hazardous objects to date.
How to boost erection size and erection quality naturally to penetrate deeper into her genital passage and cialis uk no prescription last longer in bed and satisfy her with mind-blowing sexual pleasure. Psychological issues include prolonged cialis prices stress, long-term depression, anticipatory anxiety, and relationship issues. The majority of men are not comfortable with the lack of long-term use data (i.e., the product was first approved and released to the public, it has viagra online no prescriptions gotten the attention of the general public. That’s why doctor prescribe muscle relaxants such as Baclofen that significantly improve viagra on line australia the recovery process and make it much easier to lead a healthy erotic life and make it altogether more fun and enjoyable with female libido enhancement strategies, every woman can now achieve her fullest sexual potential. “NASA’s long-term planetary defense goals include developing technology and techniques for deflecting or redirecting objects that are determined to be on an impact course with Earth. NASA’s Asteroid Redirect Mission concept would demonstrate the effectiveness of the gravity tractor method of planetary defense, using the mass of another object to pull an asteroid slightly from its original orbital path. The joint NASA-European Space Agency Asteroid Impact and Deflection Assessment (AIDA) mission concept, if pursued, would demonstrate an impact deflection method of planetary defense.
“Even if intervention is not possible, NASA would provide expert input to FEMA about impact timing, location and effects to inform emergency response operations. In turn, FEMA would handle the preparations and response planning related to the consequences of atmospheric entry or impact to U.S. communities.”
A space agency “asteroid initiative” study concluded that the “Asteroid Grand Challenge (AGC)… is seeking the best ideas to find all asteroid threats to human populations, and to accelerate the work that NASA is already doing for planetary defense. The Asteroid Initiative will leverage and integrate NASA’s activities in human exploration, space technology, and space science to advance the technologies and capabilities needed for future human and robotic exploration, to enable the first human mission to interact with asteroid material, and to accelerate efforts to detect, track, characterize, and mitigate the threat of potentially hazardous asteroids.”
Similar to spectacular science fiction films about asteroid threats, a NASA attempt to deflect a menacing object would involve a human crew. The AGC study outlined “concepts for extra-vehicular activity (EVA) systems, such as space suits, tools, and translation aids that will allow astronauts to explore the surface of a captured asteroid, prospect for resources, and collect samples.”
Unfortunately, NASA’s plans for manned space flights continue to be pushed further into the future. President Obama prematurely ended the Space Shuttle program, then cancelled its successor, the Constellation. The newest version, the Orion spacecraft, essentially an updated and enlarged Apollo-era vehicle, will not take astronauts into space until 2023.
NASA’s limited budget has concentrated attention on the White House’s environmental issues rather than the space agency’s original human exploratory mission.