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Space junk since 1957-- ~95% are orbital debris

Scientists have been sending stuff into space, ever since the launch of the world's 1st satellite Sputnik in 1957. Millions of pieces (originally useful) are now floating fast in space. Even a small object (e.g., 1 cm of mass 1.41 g) can have a big impact (with an energy 70.7 Joules, similar to a falling piano) especially if it collides head on with something moving at a similar speed. [Australian Academy of Science; nova.org.au/space-junk]
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An animation of space debris orbiting the Earth - space
trash, garbage, space exploration, space junk, News, space trash, Science, Innovation, Waste Disposal, japanese effort remove space junk, orbiting debris
Scientists are warning there’s now so much space debris in low-Earth orbit that action needs to be taken.

a new algorithm -- imaging space junk

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How do tiny pieces of space junk cause incredible damage? | Live Science

ISS Damage by a tiny space junk

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Scientists in Ch...
Scientists in Ch...
Europe Is Launching a Suicide Robot to 'Hug' Space Trash Out of Orbit | Live Science

Space Debris Removal -- ESA's Robotic Junk Collector

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Vintage Cigarette Boxes Feature Designs From The Soviet Space Program
1972 Laika Belka Strelka Space Dogs in 16 PC Set Soviet Russian Layka Dog

Laika - 1st space dog as early Russian space mission test object

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1960s Russia tested I.S. , wh colud approach a target & explode. The Fighter Plane Powerful Enough to Destroy a Satellite in Space

Istrebitel Sputnik - Russian Satellite Destroyer

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Space Junk Explained: How Orbital Debris Threatens Future of Spaceflight (Infographic). One exploding satellite could cause a cascade of debris that makes it impossible for scientists to launch anything space ever again.
Comet LoveJoy
A Comet and a Cluster. This beautiful image shows the comet Lovejoy as it moves past the Pleiades Cluster. While the Pleiades Star Cluster has been studied for thousands of years, the comet Lovejoy was only discovered in August of 2014 by the amateur astronomer Terry Lovejoy. Terry’s passion for astronomy lead him to discover the first comet from ground-based observation in over 40 years.Credit: AmazingSky.com/Terry Lovejoy

PHOs - Potentially Hazardous Objects

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This NASA graphic depicts the amount of space junk currently orbiting Earth. The debris field is based on data from NASAs Orbital Debris Program Office. Image released on May 1, 2013. br /
OBJECTS:1)Rocket - body, debris fr unknown causes 2)Payload - satellites, scientific equipment, debris fr unknown causes 3) Unknown. Mass orbiting Earth in tonnes (<10 ~ >1,000) at avg distance (2,000 km~20,000 km [GPSsatellites]~42,164 km [GOES weather satellite])
A Minefield in Earth Orbit: How Space Debris Is Spinning Out of Control [Interactive]

a 'critical mass' of space junk may be only a few decades away!

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Ham the Chimp after his flight into space. He successfully became the first animal to actually interact with a space vessel rather than simply ride in it, after being trained to pull levers. CREDIT: NASA
Moving at 22,000 mph(36,000 km/hr) a 4 in(10 cm) object can cause damage equal to 25 sticks of dynamite. Vanguard 1 - Wikipedia, the free encyclopedia
Vanguard 1, the oldest piece of space debris, is expected to remain in orbit for more than 200 years. - Wikipedia, the free encyclopedia

Space flotsam

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SpaceX, the spearheading power behind reusable rocket innovation, has officially demonstrated to the world that solitary utilize rockets will one day be a relic of days gone by, yet the organization plainly isn’t finished sharpening its recuperation and repairing procedures. Head man, and conceivable future superhuman sent back so as to usher mankind into another …

SpaceX's Tesla Roadster

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Soviet Space Matchbook cover
Space, the Ultimate Visual Frontier: 70+ Amazing Infographics • Inspired Magazine

Salyut-2 (Russia) 1973 20.2tons(18.3metric tons)

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Skylab (NASA-USA) 1979 81tons(73metric tons)

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Mir (Russia) 2001 132.3tons(120metric tons)

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Tiangong-2 might follow the Footsteps of its Predecessor - Absolute Knowledge
Here's How to Track the Chinese Space Station's Uncontrolled Plunge to Earth
China's first space station, launched in 2011, Tiangong-1, is expected to fall to Earth some time between April 1 and 2.

Tiangong-1 (China) 2.4.2018 9.4tons(8.5metric tons)

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