college station there is research that is off the wall some off the charts and some off the planet such as what a texas a&m university aerospace and physics professor is exploring its a plan to deflect a killer asteroid by using paint and the science behind it is absolutely rock solid so to speak so much so that nasa is getting involved and wants to know much more dave hyland professor of physics and astronomy and also a faculty member in the aerospace engineering department at texas a&m and a researcher with more than 30 years of awards and notable grants says one possible way to avert an asteroid collision with earth is by using a process called tribocharging powder dispensing as in high pressured and spreading a thin layer of paint on an approaching asteroid such as the one named da14 that came within 17 000 miles on feb 15 what happens is that the paint changes the amount by which the asteroid reflects sunlight hyland theorizes producing a change in what is called the yarkovski effect (which was discovered by a russian engineer in 1902) the force arises because on a spinning asteroid the dusk side is warmer than the dawn side and emits more thermal photons each photon carrying a small momentum the unequal heating of the asteroid results in a net force strong enough to cause the asteroid to shift from its current orbit hyland further theorizes the kind of paint used is not the kind found at your local hardware store hyland explains it could not be a water-based or oil-based paint because it would probably explode within seconds of it entering space he notes but a powdered form of paint could be used to dust on the asteroid and the sun would then do the rest it cures the paint to give a smooth coating and would change the unequal heating of the asteroid so that it would be forced off its current path and placed on either a higher or lower orbit thus missing earth i have to admit the concept does sound strange but the odds are very high that such a plan would be successful and would be relatively inexpensive the science behind the theory is sound we need to test it in space as for getting the paint on the asteroid a practical way to do this was discovered by a former student of hylands shen ge who has since started a new space company the tribocharging powder dispenser would spray a mixture of inert gas and charged dry-paint powder at the asteroid that would attract the powder to its surface through electrostatics then solar wind and uv radiation would cure the powder giving a smooth thin coat on the surface getting the paint in the asteroids path in a timely manner will certainly be a challenge hyland observes the tribocharged powder process is a widely used method of painting many products he says it remains only to adapt the technology to space conditions nasa has approached hyland for developing such a project to test the theory and the earth may need it quickly an asteroid called apophis is due in 2029 and will come closer than many communications satellites in orbit right now it will fly by on april 13 (friday the 13 to be exact) of 2029 and make a return trip in 2036 and its estimated to be more than 1 000 feet in length and is appropriately named for an evil egyptian god of chaos and destruction there is no chance of its hitting earth in 2029 but a small chance in the next close approach in 2036 hyland notes asteroids have hit earth before one hit off the yucatan coast of mexico about 65 million years ago and is believed to have caused the eventual extinction of the dinosaurs and in 1908 the fabled tunguska event occurred in siberia in which an asteroid or meteor exploded several miles above the earth flattening trees and killing livestock over 800 square miles the explosion is now estimated to have been 1 000 times more powerful than the a-bomb dropped on hiroshima there are thousands of asteroids out there and only a small percentage of them are known and can be tracked as they approach earth hyland adds the smaller ones like da14 are not discovered as soon as others and they could still cause a lot of damage should they hit earth it is really important for our long-term survival that we concentrate much more effort discovering and tracking them and developing as many useful technologies as possible for deflecting them # # # # # # # # # # about research at texas a&m university: as one of the worlds premier research institutions texas a&m is a leader in making significant contributions to the storehouse of knowledge in many fields including rigorous scientific and technological disciplines research conducted at texas a&m represents an annual investment of more than $700 million; the university ranks 20th among all us universities and third nationally for universities without a medical school according to the national science foundation research at texas a&m creates new knowledge that provides basic fundamental and applied contributions resulting in many cases in economic benefits to the state nation and world to learn more visit http://vprtamuedu -atm- watch an interview with dr hyland about his research on you tube: contact: david hyland at (979) 255-7769 or keith randall news & information services at (979) 845-4644 the post asteroids no match for paint gun says prof appeared first on texas a&m college of science