•   
  •   

Tech & Science How large asteroids must be to destroy a city, state, country, or the planet

05:06  02 july  2018
05:06  02 july  2018 Source:   businessinsider.com.au

Plans for 'vertical' high-rise high school revealed

  Plans for 'vertical' high-rise high school revealed The Queensland government has given parents a glimpse into the state's first-ever high-rise high school. Your browser does not support this video require(["binding"], function (binding) { binding("wcVideoPlayer", "#video_player_8f1c7b31-aee9-40f2-954c-f7efd911242c").all(); }); Parents and prospective students have been given a glimpse of Brisbane's first high-rise high school.

How big of an asteroid does it take to damage cities , states , countries , and the planet ? On the fourth-annual World Asteroid Day (Saturday, June 30), we take a look at estimates from NASA, Purdue University's "Impact Earth" simulator, and other sources.

But how big of an asteroid does it take to damage cities , states , countries , and the planet ? On the fourth-annual World Asteroid Day (Saturday, June 30), we take a look at estimates from NASA, Purdue University’s “Impact Earth” simulator, and other sources.

a close up of text on a black background© Provided by Business Insider Inc Scientists who study asteroids often say that Earth is drifting through a cosmic shooting gallery.

Some angry space rocks, like the recent Chelyabinsk meteorite that exploded over Russia, are big enough to shatter windows and crumble walls. Others, like the one that caused the Tunguska Event of 1908, can flatten entire cities. A handful can trigger global extinctions, like the asteroid that smashed into Mexico's Yucatan Peninsula 66 million years ago.

But how big of an asteroid does it take to damage cities, states, countries, and the planet?

On the fourth-annual World Asteroid Day (Saturday, June 30), we take a look at estimates from NASA, Purdue University's "Impact Earth" simulator, and other sources.

Thinking about aliens could help us beat climate change

  Thinking about aliens could help us beat climate change “Climate change is not our fault. Not doing something about it — that will be our fault.”  “Climate change is not our fault. Not doing something about it — that will be our fault.

Post with 116 votes and 5341 views. Tagged with space, neat, mikes happy place; Shared by spongeologist. How large asteroids must be to destroy a An asteroid more than half a mile wide would start to have global implications. It could destroy an area the size of the US state of Virginia.

But how big of an asteroid does it take to damage cities , states , countries , and the planet ? On the fourth-annual World Asteroid Day (Saturday, June 30), we take a look at estimates from NASA, Purdue University’s “Impact Earth” simulator, and other sources.

Most of us go through life without thinking much about rocks from space. But even a small -- and relatively frequent -- asteroid can inflict great damage.

a close up of a toy© Provided by Business Insider Inc

NASA releases 'turbulent' photo of Jupiter's clouds

  NASA releases 'turbulent' photo of Jupiter's clouds NASA released an image taken by the Juno spacecraft of Jupiter, featuring swirling cloud belts on the giant planet's northern hemisphere.The image captures Jupiter's "chaotic and turbulent" clouds, with swirling formations and several vortices in the giant planet's northern hemisphere.

How big of an asteroid does it take to damage cities , states , countries , and the planet ? On the fourth-annual World Asteroid Day (Saturday, June 30), we take a look at estimates from NASA, Purdue University’s “Impact Earth” simulator, and other sources.

Others, like the one that caused the Tunguska Event of 1908, can flatten entire cities . A handful can trigger global extinctions, like the asteroid that smashed into Mexico’s Yucatan Peninsula 66 million years ago.

By numbers, most meteors are smaller than a car and burn up in the atmosphere as harmless meteors.

  How large asteroids must be to destroy a city, state, country, or the planet © Provided by Business Insider Inc

This is how NASA plans to protect Earth from being destroyed by an asteroid

  This is how NASA plans to protect Earth from being destroyed by an asteroid “National Near-Earth Object Preparedness Strategy and Action Plan” is the name of an 18-page report that outlines the steps that the US government will take in order to prevent asteroids from striking the planet. “National Near-Earth Object Preparedness Strategy and Action Plan” is the name of an 18-page report that outlines the steps that the US government will take in order to prevent asteroids from striking the planet.

An asteroid the size of Empire State building is bad news. With the right composition, speed, and angle of attack, a rock this size might leave a wake of destruction the size of central Manhattan or even more. In other words, if a mile-wide asteroid were to directly hit New York City , the force of the

How big of an asteroid does it take to damage cities , states , countries , and the planet ? On the fourth-annual World Asteroid Day (Saturday, June 30), we take a look at estimates from NASA, Purdue University's "Impact Earth" simulator, and other sources.

Any larger than that, and things start getting risky.

a close up of a house© Provided by Business Insider Inc

If you die via asteroid, this is how it will happen

  If you die via asteroid, this is how it will happen It’s incredibly unlikely. But what if?Asteroids that pose an existential threat to life on Earth only strike once every 500,000 years or more. Even the 140-meter-wide asteroids that could destroy cities and regions rain down death once every 10,000 years. And the risk of being even injured from a 20-meter object — like the one that exploded over Chelyabinsk, Russia, in 2013 and hurt nearly 1,500 people — is tiny.

How big of an asteroid does it take to damage cities , states , countries , and the planet ? On the fourth-annual World Asteroid Day (Saturday, June 30), we take a look at estimates from NASA, Purdue University's "Impact Earth" simulator, and other sources.

Destroying Life. Smaller asteroids have hit the Earth in the past, and they have cause massive destruction . Scientists estimate that this object must have been between 11 to 12 km (7 to 8 miles) wide. Upon crashing into the planet , it created a huge dust plume that completely covered the globe

Some detonate into airbursts high above the ground. These explosions create shockwaves strong enough to break windows.

a house with trees in the background© Provided by Business Insider Inc

200,000 asteroids trace their origins to just a handful of obliterated parents

  200,000 asteroids trace their origins to just a handful of obliterated parents <p>And that’s only the inner asteroid belt.</p>You might think of asteroids as mindless blobs of rock circling our solar system, and you’d be completely correct. But these chunks of stone have a fascinating origin story—one that scientists here on Earth are still trying to piece together.

Computer modelling suggests that the impact involved large asteroids or protoplanets similar to the causing extensive damage and destruction , followed by a direct hit from the larger planet .[101]. Both involved using Space Shuttle-derived craft to deliver nuclear weapons to destroy their targets.

Fortunately, asteroid studies also tell us what it takes to wreck a planet . It takes at least five years to design, build and launch a spacecraft that can deflect or destroy an asteroid or comet, according to “The probability that any large asteroid is going to hit is in the near future is pretty low," Bottke says.

They can also emit enough light energy to cause a sunburn.

a close up of a house© Provided by Business Insider Inc

Airbus is designing a Mars rover to return soil samples

  Airbus is designing a Mars rover to return soil samples Back in April, NASA and the European Space Agency (ESA) agreed to figure out whether it's possible to bring Martian soil samples back to Earth. Now, the ESA has granted Airbus a $5.2 million contract to design a concept for a rover that can collect those samples on the red planet. The space agency has chosen Airbus' team in Stevenage, England, because they're already building the ExoMars rover that's scheduled to head to our neighboring planet in 2021.

Tunguska sized (~40m that hit Siberia in 1908) could completely destroy a city or create a tsunami. Larger asteroids that hit on average less often could cause regional destruction . You must be logged in to submit a comment. Log in now.

But how big of an asteroid does it take to damage cities , states , countries , and the planet ? By numbers, most meteors are smaller than a car and burn up in the atmosphere as harmless meteors. Any larger than that, and things start getting risky.

A house-sized meteorite can explode in Earth's atmosphere with a force greater than the nuclear weapon the US dropped on Hiroshima in 1945.

  How large asteroids must be to destroy a city, state, country, or the planet © Provided by Business Insider Inc

These will be the world's biggest cities in 2030

  These will be the world's biggest cities in 2030 With over 37 million residents, Greater Tokyo is the most populous metro area in the world today.&nbsp;

Such a space rock could flatten most buildings within 1.5 miles of ground zero.

a close up of a toy© Provided by Business Insider Inc

An asteroid the size of a 20-story building is bad news.

  How large asteroids must be to destroy a city, state, country, or the planet © Provided by Business Insider Inc

With the right composition, speed, and angle of attack, a rock this size might leave a wake of destruction the size of central Paris.

a close up of text on a black background© Provided by Business Insider Inc

One roughly the size of a football field could obliterate New York, causing a 7.7-magnitude earthquake that might be felt than 1,000 miles away.

  How large asteroids must be to destroy a city, state, country, or the planet © Provided by Business Insider Inc

An asteroid more than half a mile wide would start to have global implications.

  How large asteroids must be to destroy a city, state, country, or the planet © Provided by Business Insider Inc

It could destroy an area the size of the US state of Virginia.

a close up of a map© Provided by Business Insider Inc

Dust tossed up from the impact would block the sun and lead to rapid changes in climates across Earth.

a circuit board© Provided by Business Insider Inc

The crater would be more than 100 miles wide.

a close up of a map© Provided by Business Insider Inc

The aftermath that follows would kill most life on Earth.

  How large asteroids must be to destroy a city, state, country, or the planet © Provided by Business Insider Inc

In fact, this is the same size as the space rock that killed the dinosaurs.

a number of animals in a room© Provided by Business Insider Inc

A London-sized asteroid would be more than just a major extinction-level event. Its impact would slow down Earth's rotation enough to make its day last almost half a second longer.

a close up of a logo© Provided by Business Insider Inc

The largest known asteroid, Ceres, is about the size of Texas.

  How large asteroids must be to destroy a city, state, country, or the planet © Provided by Business Insider Inc

Lucky for us, Ceres has no chance of striking Earth.

  How large asteroids must be to destroy a city, state, country, or the planet © Provided by Business Insider Inc

These will be the world's biggest cities in 2030 .
With over 37 million residents, Greater Tokyo is the most populous metro area in the world today.&nbsp;

—   Share news in the SOC. Networks

Topical videos:

This is interesting!