It is believed some 7,000 tonnes of space junk circle our planet, as defunct satellites, junk from rockets and other metals and rocks build up close to Earth, which the ESA has warned could cause a problem for other satellites and even astronauts.
And if two pieces of kit collide – or worse an astronaut is hit – the effects would be similar to “an exploding grenade”.
A massive congestion of objects in space has led the ESA to demand that the debris needs to be cleared up, or we will face the consequences.
Experts fear regions in Earth’s orbit will become inaccessible for space flight as they essentially block the paths of rockets.
SPACE WARNING: Debris ready to EXPLODE like GRENADES above Earth
Due to the speed that the objects travel at, it is thought they could cause a domino effect where one satellite wipes out another in an ongoing process.
In a newly released video, Holger Krag, head of space debris at the ESA, said: “It is not comparable to a gunshot.
“The energy contained in a one centimetre (0.4 inch) particle hitting a satellite at that velocity, roughly corresponds to an exploding grenade.
The amount of space debris in Earth's orbit
“These collisions generate more fragments, and these fragments are candidates for new collisions to come.
“The largest fear we have is that we enter in some sort of cascading effect, where one collision triggers the next one.
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Astronauts could be at risk
“This is not anything that will happen in a microsecond like in the movie Gravity.
“It will set in slowly, hardly noticeably, but unstoppable.
Earth's technology relies heavily on satellites
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Bubble Nebula, also known as NGC 7653, which is an emission nebula located 11 000 light-years away
“Over decades, the frequency of collisions might increase without human influence.
“That is a situation that might render some regions in space unusable for space flight and that would be a disaster.”
In the modern world, humans rely heavily on satellites with the man-made objects used for applications such as internet service, GPS navigation, satellite TV such as Sky and mobile phone signal.