Huge spacecraft spotted Earth in the distance.
A giant asteroid named Bennu 101955 or Bennu is predicted to hit Earth in 2135, said the space agency that has been calculating the orbital path of the rock.
If it eventually hit Earth, the damage caused by Bennu is predicted to be quite severe - given its slightly larger size than the Empire State Building, the third tallest tower in New York City, USA.
Realizing the potential for such a catastrophe, a US space agency scientist (NASA) claims to have a potent stance capable of dispelling an asteroid. Similarly, as quoted by the Daily Mail (26/3/2018).
Michael Moreau, a NASA scientist, said his organization had sent an unmanned spacecraft named OSIRIS-REx which was tasked to paint the giant asteroid with a darker color than its original color.
Darker colors will cause the asteroid to absorb more light and solar radiation. As the asteroid absorbs more light and radiation, the trajectory of the orbit of Bennu may change.
The result is most likely the avoidance of the Earth from a collision disaster with the giant asteroid.
"By painting the surface with a darker color with the original color, the result will change the thermal properties and trajectories of the asteroid's orbit," Moreau said.
Bennu, with a diameter of 492 m, is a potentially dangerous object discovered in 1999 - a finding that surprised NASA at the time.
There is a small chance, about 1 to 2,700, that Bennu will crash and bring disaster to Earth in 2135 - based on the calculation of its current orbital path.
Cat Solutions More Effective Than Nuclear
Some scientists have advised to anticipate the asteroid threat by firing nuclear weapons into Bennu. The goal is to destroy the giant stone so that no longer pose a threat to the Earth.
However, according to Michael Moreau, the mission scientist OSIRIS-REx NASA, paint solutions are considered more efficient and effective than nuclear options.
Using basic natural science rules - where darker colors absorb heat rather than bright colors that actually reflect - the dark colored paint is expected to further trigger Bennu to absorb more of the Sun's heat.
The more heat is absorbed it will increase the level of radiation in the giant asteroid.
Heat and radiation The sun constantly exerts pressure or melts things in the Solar System. Impact, the objects can undergo a change of shape which then impact on changes in the path of each orbit trajectory.
Peret penyet against Bennu, according to calculations, fairly easy. Because, the size is relatively small when compared with other space objects - so it seems like painting the Empire State Building building alone.
If scientists can make some of Bennu more vulnerable to solar radiation by painting it into a dark color, it will avoid the asteroid hit Earth.
Nevertheless, until now, scientists must first study the composition and pathway of the asteroid's orbit to take the best course of action.
Currently, NASA's OSIRIS-REx spacecraft is on its way to collect Bennu samples. The shuttle was expected to reach the asteroid in December 2018.
OSIRIS is scheduled to return to Earth with a Bennu sample in 2023.
Emergency Options
NASA and the National Nuclear Security Administration actually have emergency solutions, if the preset option does not work.
They are developing a HAMMER (Hypervelocity Asteroid Mitigation Mission for Emergency Response), a massive 8.8-ton airplane designed to crash into a giant asteroid approaching and potentially crashing into Earth aka the near-Earth object or NEO.
Bennu belongs to the NEO category according to NASA's assessment.
The remarkable kinetic power of HAMMER is believed to hit a giant asteroid like Bennu if it endangers Earth. The kinetic strike may be crushing, repelling, or deflecting the giant asteroid's crossroads.
On the other hand, NASA also explains that nuclear is also included in emergency solutions related to NEO mitigation that might hit Earth later - assessing nuclear as an 'all-round and flexible' option.
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