Asteroid Apophis to give Earth a flyby in 2029
When asteroid 99942 Apophis was first discovered in 2004, it caused concern because it could potentially collide with Earth. Named after the Egyptian god of darkness and chaos, the asteroid attracted attention because as possibly the most dangerous asteroid at the time. Initial calculations suggested a possible impact during its approach to Earth in 2029, leading to widespread fear. However, further research has since ruled out any risk of a collision for at least the next century.
Even though the threat has diminished, the approaching passage of Apophis in 2029 continues to pique the interest of scientists. The asteroid will skim past Earth at a distance of about 32,000 kilometers, closer than numerous satellites. This proximity will provide unique observations and possible discoveries about the asteroid itself. A study led by Ronald-Louis Ballouz of the Johns Hopkins University Applied Physics Laboratory suggests that Apophis could experience quakes similar to earthquakes due to Earth’s gravitational pull during the asteroid’s proximity.
It is predicted that these ‘astroquakes’ will begin an hour before Apophis reaches its closest point to Earth and continue for some time thereafter. They could cause landslides and trigger seismic activity on the asteroid’s surface, changing the asteroid’s appearance as surface materials are dislodged and even small rocks are hurled into space.
Scientists believe these vibrations will provide valuable insights into the composition and internal structure of Apophis. Understanding how these asteroids change due to gravity is crucial to developing effective planetary defense strategies. Nasa’s Osiris-Apex mission, which is scheduled to encounter Apophis in 2029, aims to observe the asteroid for 18 months after it comes close. This will allow scientists to analyse these effects in real time and possibly elucidate why certain asteroids have surfaces that are younger than their age suggests based on their space history.
Business AM
Subscribers 0
Fans 0
Followers 0
Followers