The European Space Agency ( ESA ) said that at around 9 tons, it is one of the largest man-made objects ever to fall back to earth.
When will that happen? Sometime this weekend.
According to Aerospace.org the satellite was able to penetrate the atmosphere at 3:15 am on Easter morning.
So it's from Saturday 7am to Saturday 11am: 3pm Sunday night.
And here is where it might strike:
You will notice on the map of Aerospace.org that the state of North Carolina is in the zone where it could hit the areas of yellow and green. 1
ESA researchers said that there is little chance of being hit by any debris.
Okay, but how small? 1 in 300 trillion
This is about 10 million times smaller than the probability of being struck by lightning.
So, you say there is a chance? Technically yes.
In 1997, a woman in Oklahoma was hit in the shoulder by a hand-sized piece of space junk from an old Delta II rocket. She was not seriously injured.
And according to ESA, 166 space junk pieces have been found on the surface over the past 55 years.
Although Tiangong-1 is the size of a school bus, most of it will burn on reentry.
His reentry can be a spectacular sight when it happens at night.
Here's a local NASA JPL scientist, Tony Rice. He tweeted a picture of what it might look like on re-entry.
The actual debris field could spread through 43 miles wide over a distance of 1200 miles.
This is not a very large area compared to the Giant surface of the Earth.
You will notice on the map above that most of the debris area is above the world's oceans.
But if by some astronomical chance a piece of it falls into your backyard The biggest danger is not being hit by it. It could be that you pick it up.
According to a fact sheet from Aerospace parts of Tiangong-1 that survive the fire on Earth may contain hydrazine, a corrosive and toxic rocket fuel  If you find a burnt piece, keep it Stay away from it and report it to your local emergency service.
Once again, the odds are good … you do not have to.
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