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Space debris case study
Space exploration ethical issues of space debris
Space debris case study
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Recommended: Space debris case study
Michael Kibbe
1/29/2016
ESS 102, Winter 2016
Space Debris
There are multiple sizes of space debris, with varying amounts in orbit depending on the size. According to NASA, it is estimated that there are over 21,000 pieces larger than 10 cm, around 500,000 between 1 and 10 cm, and over 100 million pieces smaller than 1 cm. [1] This debris is also traveling extremely fast; the average speed is of a piece of debris is estimated to be at between 7 and 8 km/s and collisions averaging at 10 km/s. There are multiple sources of space debris; some is intentionally released as the byproduct of actions such as stage separation of spacecrafts. [1] The ESA also cites space's harsh conditions as causing explosions and
Why is space debris a problem?
Both NASA and the ESA agree that space debris is definitely a problem if left unchecked, but the two differ slightly in the severity of their
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[1] According to NASA, space debris at an altitude of below 600 km above Earth will naturally succumb to the planet's gravity in a few years, while altitudes of around 800 km and above 1000 km take decades and centuries, respectively. [1] Because the debris stays in orbit so long, the chances of it colliding rises. These debris collisions create even more pieces of debris, each of which has a higher chance of colliding with other debris, with those collisions each exponentially creating even more debris to deal with.
How are we tracking space debris?
Different size space debris calls for different methods of tracking. According to NASA, the U.S. Space Surveillance Network tracks pieces larger than 10 cm. Radars on Earth can keep track of pieces down to 3 mm in size, while returning spacecraft operating in low Earth orbit are analyzed in order to estimate the amount of debris in the less-than-1-mm range. [1]
What potential solutions are being discussed to remove debris from
Asteroids are tiny, airless rocky worlds orbiting around the sun and most of them are too small to be called planets, yet, some asteroids are too big too not to be acknowledged and are known as planetoids or minor planets. The mass asteroids are puny but despite their size, asteroids can be deadly. The earth has been hit by many asteroids in the past and can potentially be hit by some again. That's one reason why scientists study asteroids and find ways to avoid them from hitting us or at least predict if they are coming.
shown by the long period of time that he has been doing the same job.
Just as any other morning, Siberia was quiet and peaceful where everybody was just enjoying themselves, living their life when something catastrophic struck many peoples’ lives. Tunguska, Siberia has many mysteries, but this one mystery has had Russia very concerned. Until this very day, they’re trying to find the key evidence of a tragic event that was taking place on the banks of the river Podkamennaya Tunguska, Siberia. This event has struck many lives and not one single soul has found the cause or reason to why or what happened there. Though, many remarkable stories were told, nobody has ever found the truth or accurate evidence. Many Russian scientists can’t even pin point out the signs to the cause of it but remarkably having many theories. Today, Tunguska still remains a notorious mystery as scientists still search the area for more interesting clues, if any, which may change the Russians forever. On the morning of June 30, 1908, roughly 7:17 am, a catastrophic and mysterious occurrence has taken place by the Tunguska River, but that is about all this is known about it. This event was an explosion; an explosion that still remains unknown on how or what happened, who caused it, and why. In the article “The Tunguska explosion: an unexpected loud bang and explosion” by Philip Coppens, the explosion was so significant in history that this event is known for being the largest impact in history. Over 80 million trees had fallen over an area of 2,150 square kilometers. Also, in Coppens’ article, several people in the villages nearby had suffered from fatal burns and later reported that two people were killed. William K. Hartmann, who wrote the article “1908 Siberia Explosion: Reconstructing an Asteroid Impact from Eyewitness Accou...
Space is also governed by rules and laws much like we do on land and sea. “Treaty on Principles Governming the Activities of States in the Exploration and Use of Outer Space, including the Moon and Other Celestial Bodies,” or commonly referred to as the Outer Space Treaty was signed in 1966 by many nations, including the Unites States, and is the basis for most international space laws and policies. Some key points to take away from this treaty in relation to the space weapons debate are the following: “(1) outer space is open to all nations to explore and use; (2) nations cannot own any portion of outer space; (3) outer space will be used for peaceful purposes; (4) nations cannot place, put in orbit, or station any weapons of mass destruction in any form in outer space.” (UNOOSA) These principles and laws are also mostly reflected in our nation’s space policy, and our national security space strategy.
But, both large and small pieces of marine debris are known to reach depths of 100 feet.7 A 20-year study indicated that the North Atlantic Ocean and the Caribbean Sea have approximately 200,000 pieces of plastic per square kilometer. And, according to the United Nations, there are an estimated 5 to 10 million tons of plastic floating through the ocean between California and
Pete, an astronaut on the shuttle Atlantis, is speaking via satellite radio to NASA’s executive director, Dan Truman. Pete is completing maintenance on a satellite when it is struck by several small meteorites. Atlantis, Pete, and the Satellite are all destroyed by the meteorites. As Truman gives
...d close-range reflection where space probes fly within close ranges of the asteroids and collect detailed data.
Meteors are very common throughout outer space. They are being whipped around our solar system in every orbit possible. Normally they are peacefully and serenely floating through space, but one just has to look at the cratered face of our moon or Jupiter's moon Callisto to see that more than a few meteor's journeys through space have been interrupted. The earth has been hit before and will be hit in the future, statistics show this. We must detect the meteors a long time before they cross paths with Earth to prevent an impact. The likelihood of a significant meteor impact in the near future is extremely small, but it is still a possibility.
Sixty-Five million years ago, 70 percent of life on Earth died. The most reasonable and possible reason this happened was an asteroid. An asteroid hit the Earth very hard, and in doing this, dirt and dust from the impact stayed in the air and it blocked out sunlight, that’s why the dinosaurs died. An asteroid is a rock from outer space. Asteroids have orbited the Sun along with the planets since the solar system formed about 4.6 billion years ago, but it’s only been 200 years since we first discovered them. Meteorites are small pieces of asteroids broken off on impact with other asteroids. Most meteorites are rusty brown on the outside, have rounded edges from melting as they go through Earth’s atmosphere, and contain iron. There are 3 different types of meteorites: stony, metallic, and stony metallic.92 percents of all asteroids are stone, 6 percent are made of iron and nickel, and the rest are a combination. Some meteorites also contain gold, copper, platinum, and carbon.
The Great Pacific Garbage Patch, which is sometimes referred to as the Eastern Pacific Garbage Patch and the Pacific Trash Vortex is a floating patch of garbage that has collected in the North Pacific Subtropical Gyre, which is located in the middle of two high-pressure areas between Hawaii and California. The majority of the garbage, which is also called marine debris, in the patch is plastic, but items made from other materials such as glass and rubber are also present. Though the garbage patch is too large and goes too deep under the surface of the ocean for scientists to determine exactly how much garbage is in it, they have collected up to 750,000 bits of plastic one square kilometer (CITE). This sort of debris floating around in the ocean is dangerous for several reasons. One important reason is that marine animals mistake some of the garbage, especially plastics, for food (CITE). Another reason that the floating debris is so dangerous is because it can block sunlight from reaching deeper levels of the ocean, and thus, it removes the energy source for many autotrophs like alga...
In order to avoid being hit by space debris, scientists developed the collision avoidance technique. They are also looking for ways to remove the debris from Earth's orbit. Most importantly, tracking these objects is key to solving all the problems. The amount of space junk accumulates daily due to the high volume of junk-to-junk collisions.
It created a gouge several hundred feet long and was scattered over a large area. Some of the debris had strange physical properties. He took some debris to show his neighbors then his son. Soon after that he notified the sheriff. The sheriff then contacted the authorities at Roswell Army Air Field Base. The are was closed off and the debris was eventually flown by B-29 and C-54 aircraft to Wright Field in Dayton, Ohio.
However, a meteor impact is a very common occurrence; but it is extremely rare for significantly sized impacts to occur. On average; there is a 1mm diameter meteorite impact every 30 seconds, a 1 meter diameter object every year, 100 meter diameter object every 10,000 and 10km diameter object every 100,000,000 years (Nelson 2014).
Marine litter may be found near the source of input but could also be transported over long distances with ocean currents and winds. As a result, marine debris is found in all oceanic areas of the world – not only
...official policy of the U.S. has been to minimize the creation of new orbital debris. The most recent National Space Policy in 2010 “addresses the importance of preserving the space environment, including orbital debris mitigation. NASA and the Department of Defense are also directed to pursue research and development of technologies and techniques to mitigate and remove on-orbit debris, reduce hazards, and increase the understanding of the current and future debris environment” (ESA, 2013). Further efforts have been made through NORAD (North American Aerospace Defense Command) located in the U.S., to keep tabs on any piece of debris that classifies as the size of a softball or larger. In closing, there are steps and precautions that can be made when approaching the subject of Space Junk, and like Kessler, all can share in the reassurance that time will heal itself.