Write a comment

A fast-moving asteroid the size of a city block will give Earth a close shave on Tuesday, zooming safely past at 6:05 p.m. EDT at a distance of about 126,000 miles. That's about half the distance from the Earth to the moon and the closest approach the asteroid will have made in nearly 300 years, EarthSky.org reported.

The space rock, known as 2010 WC9, is moving at almost 29,000 miles per hour and has a diameter of 60 to 134 meters, or roughly 200 to 400 feet — "as big across as a city block," Dr. Erin Ryan, an asteroid expert at NASA's Goddard Space Flight Center in Greenbelt, Maryland, told NBC News MACH in an email.

Big as it is, the asteroid is too faint to be seen with the naked eye even during the flyby. But Northolt Branch Observatories, an astronomy group in London, England, plans to livestream telescopic views of the approaching asteroid on its Facebook page beginning Monday night around midnight local time (7 p.m. EDT).

Dr. Paul Chodas, director of the Center for Near-Earth Object Studies at the NASA Jet Propulsion Laboratory in Pasadena, California, and a noted expert on asteroids, said astronomers affiliated with the NASA-funded Catalina Sky Survey discovered 2010 WC9 in 2010 and quickly determined that it posed no threat to Earth. "We knew enough not to be worried," he said.

But what if an asteroid the size of WC9 were to strike Earth? If it were made of rocky material, Ryan said, it might create a small crater and shatter windows — as happened in 2013, when a meteor entering the atmosphere blew up over Chelyabinsk, Russia. But some asteroids are made of metal, and if one the size of WC9 were to hit us, she said, "you'd get a crater about as big as Meteor Crater."

Meteor Crater, about 19 miles west of Winslow, Arizona, is about 4,000 feet in diameter and about 600 feet deep. 

That might sound scary even to contemplate, but astronomers say there's no need to be overly concerned about an asteroid strike.

An asteroid roughly the size of 2010 WC9 collides with Earth only about once every 6,000 years, Chodas said. And as Dr. Amy Mainzer, another asteroid expert at the Jet Propulsion Laboratory, told MACH in December, “There are no objects that have been identified that are known to be on a collision course with Earth.”

Loading comment... The comment will be refreshed after 00:00.

Be the first to comment.

Say something here...
You are a guest ( Sign Up ? )
or post as a guest
 

 

 

Latest

Write a comment

Heads-Up Taiwan: 167 MPH Winds - 200 MPH Gusts!

September 23, 2018
8 Comments

Amazon Associates BEWARE! Have Just TERMINATED Relationship with Amazon Associates

September 23, 2018
12 Comments

Russia to Israel: Who is in control of your military? Says Israel "Ungrateful" and "Criminally Negligent" in Downing of IL-20 Plane

September 23, 2018
1 Comment

Democrats Could be HELD in Senate Session through OCTOBER - Can't Campaign!

September 21, 2018
Write a comment

Mitch McConnell: Has the Votes to Confirm Kavanaugh

September 21, 2018
41 Comments

SYRIA ATTACKED AGAIN - "MISSILES FROM THE SEA" -- Russian IL-20 Aircraft with 14 Troops aboard "HIT" - falls into the Med.

September 17, 2018
5 Comments

North Carolina Nuclear Plant Declares EMERGENCY

September 17, 2018
22 Comments

AMBUSHED! US Forces KILLED by ISIS in Syria

September 16, 2018
12 Comments

Here it is: Filming of a FALSE Chemical Attack at Hospital in Syria

September 16, 2018
5 Comments

Hurricane Leaves Major "Hole" In US National Defenses!

September 15, 2018
19 Comments

RUSSIANS BOMB AL-TANF - PERIMETER OF U.S. BASE; AMERICAN TROOPS "TRAPPED"

September 15, 2018
Write a comment

47.3 Inches of Rain in 48 Hours - and it's still raining!

September 15, 2018
9 Comments

COVERT INTEL: Solar Observatory Closure in New Mexico

September 15, 2018
2 Comments

Mueller Refers Former Obama White House Counsel for Criminal Prosecution!

September 15, 2018
12 Comments

COVERT INTEL: Keep an eye on Europe This Weekend; Germany, Austria, Lichtenstein in particular

September 14, 2018