Home Uncategorized A Near Miss

A Near Miss

Author

Date

Category

Earth had a near-miss with a ‘city-killer’ asteroid

An asteroid about 100 metres in diameter and racing at 24 kilometres a second has just missed the Earth.

The rock, called Asteroid 2019 OK, sped by our planet on Thursday, passing within about 70,000 kilometres – which is a long way away but closer to us than the moon’s orbit.

Due to the position of the asteroid – flying towards us from the direction of sun – astronomers had no warning it was headed our way.

It is the largest rock to fly at such close quarters to the Earth this year, and possibly for many years.

Astronomers believe it is between 57 and 130 metres in diameter.

Telescopes only began to pick it up a couple of days ago, with a confirmation it was an asteroid only coming in the past 24 hours.

“It’s impressively close. I don’t think it’s quite sunk in yet. It’s a pretty big deal,” says Associate Professor Michael Brown, from Monash University’s school of astronomy.

“[If it hit Earth] It makes the bang of a very large nuclear weapon – a very large one.”

How big?

“It would have hit with over 30 times the energy of the atomic blast at Hiroshima,” says Swinburne University astronomer Associate Professor Alan Duffy.

“It’s a city-killer asteroid. But because it’s so small, it’s incredibly hard to see until right at the last minute.

Asteroids this size tend to pass by once every decade.

Three other asteroids also raced past the Earth on Thursday, but none were as close or as large as 2019 OK.

The asteroid was picked up by separate astronomy teams based in Brazil and the US over the past few days.

NASA’s Jet Propulsion Laboratory confirmed the discovery. The asteroid passed Earth by just 73,000 kilometres away, and was sized between 57 and 130 metres in diameter, according to the Lab’s data.

“This is one of the closest approaches to Earth by an asteroid that we know of. And it’s a pretty large one,” says Professor Brown.

By comparison, the rock that killed the dinosaurs was about 16 kilometres across, said Professor Gretchen Benedix, a planetary science researcher at Curtin University.

“It’s not totally out to lunch these things happen. It’s more rare they happen within a lunar distance,” she said.

“If that were to hit the Earth, that would be bad. Something 100 metres across would leave a noticeable hole on the planet.”

The Chelyabinsk meteor, which exploded over Russia in 2013, was only about 20 metres in diameter.

Astronomers typically try to pick up asteroids long before they pass by Earth.

But this one was particularly difficult to see because it was coming toward the Earth from the direction of the sun, making it very hard to see,  Professor Brown said.

“It was faint, it was close to the sun. It’s been getting closer to us, getting brighter and brighter, and finally some smaller telescopes have picked it up. Literally, right about now, it’s about 70,000 kilometres from Earth,” he said.

A person armed with a pair of binoculars and looking at the right spot in the night sky may even have been able to spot it, he said.

Several dozen smaller asteroids in the six-to-12 metre range fly past Earth at a distance closer than the moon every year, according to NASA.

But such a large rock being so close is unusual.

“These events are rare. But we know, sooner or later, there’s going to be one with our name on it,” says Professor Duffy.

Did anyone tell our silly little girl about this? If not, why not. An event like this is more likely to cause our demise than any stupid climate change emergency ever will.

Previous articleHave Your Say
Next articleHotel to Avoid

11 COMMENTS

  1. Yeah, this type of thing is a real issue (should one connect). The problem is not even the fraudsters can blame humans for them. Which means it’s a hard sell to raise taxes and obliterate freedoms when they cannot resort to guilt tactics.

    Not that the fraudsters haven’t tried to sell the idea of impacts being the result of human induced global warming: where global warming will act like a Star Wars’ tractor beam on asteroids and meteors causing them to slam into our planet.

    0

    0

Recent posts

Insects On The Menu Soon?

The Risks Of Eating Commercially-Farmed Insects Written by John O'Sullivan Should you eat insects as a staple part of your diet? Not according to the best...

Take Away The Fear Factor.

From Us; I am unvaccinated. I am pure-blooded. I don't comply. I love freedom .......... From Them; Wear your damn mask. You are a terrorist. You are...

29% Of Vaxxed Teens Have Heart Problems

29% Of Vaxxed Teens Have Heart Problems! – New Studies Expose The Fraudulent Vaccines! "This should alarm everyone. We're watching a genocide take place...

Recent comments

waikatogirl on Have Your Say
Odakyu-sen on Have Your Say
Rachael Membery on Have Your Say
waikatogirl on Have Your Say
I am a stupid boy on Have Your Say
Sooty on Have Your Say
Sooty on Have Your Say

The way we all feel about this useless government

Hamilton
light rain
17.2 ° C
17.8 °
16.8 °
92 %
3.6kmh
100 %
Thu
17 °
Fri
17 °
Sat
18 °
Sun
17 °
Mon
15 °
NZD - New Zealand Dollar
USD
1.5851
EUR
1.6207
AUD
1.1056
CAD
1.2320
GBP
1.9174
JPY
0.0117
CNY
0.2346
INR
0.0199