If you’ve read my previous posts, this is exactly what I have warned about. Asteroids coming toward Earth from the direction of the sun are extremely hard to spot. Just like the ‘surprise’ meteor explosion in Chelyabinsk Feb. 15, 2013, which was not observed before exploding with the energy equivalent of a 400-500 kiloton blast.
An asteroid large enough to cause damage to a large city can sneak up on Earth at any time. It’s not the asteroids NASA is tracking that worries me. It’s the ‘surprise’ asteroids they miss that I’m concerned about.
Now we see this news published by USA Today on Nov. 1, 2022.
Astronomers have detected three asteroids in close proximity to Earth, two of which pose a potential threat as “planet killers” because of their larger and hazardous size, but don’t worry, says a NASA expert, they aren’t expected to hurt us.
According to findings published in the peer-reviewed Astronomical Journal on Monday, the three asteroids – which belong to a group found within the orbits of Earth and Venus – were previously undetectable via telescope due to the glare and brightness of the sun.
The biggest asteroid is the most hazardous object to prompt a significant risk to Earth in the last eight years, researchers say. One of the asteroids, named 2022 AP7, is a little less than one mile wide but has an orbit that could reach Earth’s path in the distant future. A timetable is uncertain, though, according to findings in the journal.
“Our twilight survey is scouring the area within the orbits of Earth and Venus for asteroids,” lead study author Scott S. Sheppard, an astronomer at the Earth & Planets Laboratory of the Carnegie Institution for Science in Washington, D.C., said in a statement. “So far we have found two large near-Earth asteroids that are about 1 kilometer across, a size that we call planet killers.”
cientists from the study determined the asteroid with most likelihood to cross Earth’s orbit will currently “stay well away from Earth,” largely because the sun would block it since its timing of crossing Earth’s orbit would be when Earth is on the opposite side of the sun.
Should an asteroid that’s half a mile long ever connect with Earth, the results to the planet could be “devastating,” according to Sheppard, because of the impact pollutants would have on the atmosphere.
“It would be a mass extinction event like hasn’t been seen on Earth in millions of years,” Sheppard said.
Threat of asteroid hitting Earth ‘is not hazardous’: NASA expert
While the observed asteroids could have devastating impacts on the plant, don’t assume it’ll actually collide with Earth, said Paul Chodas, director of NASA’s Jet Propulsion Laboratory Center for Near Earth Object Studies who was not involved in the study.…