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In April 2029, a Massive Asteroid Will Just Miss Earth. Scientists Are Worried There Could Still Be Major Consequences
In April 2029, a rare visitor is going to swing through near-Earth space.
Asteroid 99942 Apophis – a chunk of space rock around 370 meters (1,210 feet) long – is going to sail past within hailing distance, less than 32,000 kilometers (20,000 miles) from Earth.
Scientists have crunched, and re-crunched, and crunched the numbers again for good measure, and they're as certain as they can be that Apophis poses no imminent threat to the inhabitants of Earth.
But do the inhabitants of Earth pose a threat to Apophis? Well, the answer to that question is a surprising maybe, according to a paper published in The Planetary Science Journal.
Asteroid Apophis, named for the Egyptian god of chaos, will pass closer to Earth on 13 April 2029 than many weather satellites do — roughly 32,000 kilometres from the surface — and up to 90% of the world's population may see it with the naked eye
For the first time, humanity will watch a mountain-sized asteroid sail closer than our weather satellites, close enough that nearly half the world might witness it without instruments.
On the evening of 13 April 2029, a point of light may appear among the stars and move quickly enough for anyone watching carefully to see that it does not belong there.
It will not be a satellite. It will not be a meteor burning in the atmosphere. It will be asteroid 99942 Apophis, a stony object with a mean diameter of about 340 metres, passing roughly 32,000 kilometres above Earth’s surface.
That is inside the altitude used by geostationary weather and communications satellites. It is less than one tenth of the average distance to the Moon. For an asteroid of this size, it is the closest encounter humanity has ever known about years in advance.
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An Asteroid The Size Of The Empire State Building Is Set To Pass Close To Earth
A gigantic asteroid is set to soar past Earth – and, if the conditions are right, it’ll be visible to the naked eye for billions of people around the world.
The asteroid is named Apophis, after the Egyptian god of chaos and destruction, as it was originally thought it might impact Earth in either 2029, 2036, or 2068.
However, scientists have since confirmed that it will safely pass close to our planet – and won’t impact Earth for at least 100 years.
It has a mean diameter of 340 metres, and is at least 450 metres long. To put that into perspective, the Empire State Building is 443 metres tall (including the spire and antenna).
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