Why Kessler Syndrome is in news

What is Kessler Syndrome ?

Named for American astrophysicist Donald Kessler and based on his 1978 academic paper, Kessler Syndrome — as the term is used today — has a muddy definition. But the phrase broadly describes a scenario in which debris in space sets off a chain reaction: One explosion sends out a plume of fragments that in turn smash into other spaceborne objects, creating more detritus. The cascading effect may continue until Earth’s orbit is so clogged with junk that satellites become inoperable and space exploration must come to a grinding halt.

How often do objects collide in space ?

Since the dawn of spaceflight in 1957, there have been more than 650 “break-ups, explosions, collisions, or anomalous events resulting in fragmentation,” according to the European Space Agency.

What is Space Junk and its related problems ?

Space Junk is the debris comprised of old non-functional satellites and other man-made objects that continue to float in the Earth’s orbit. This space debris includes spacecraft, spent rocket boosters and even astronaut’s tool bags they lost during the mission.

Since the space age began in the 1950s, around 50,000 tons of material have been launched into orbit, with over 13,000 tons of space objects currently in space as of September 2024. Of the 19,590 satellites launched since 1957, 13,230 remain in orbit, with 10,200 still operational, according to the European Space Agency which cited the data from the U.S Space Surveillance Network.

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