Skip to main content

Space Debris - A New Global Threat

Space Debris – A  New Global Threat 

Space debris are  parts of  rockets and other artificial satellites that are either dead or lost,  dead space crafts,  even tiny flecks of paints from space craft  moving in the Space ; They also include objects that are results of explosions in the Space ;  According to NASA there are millions of  such  junk pieces orbiting our Earth ;

Causes of Such Accumulation of Space Debris

Over the years there has been a significant rise in the number of artificial satellites being sent into the  Space  in order to gather accurate & relevant data useful to perform a range of objectives  such as scientific research, weather predictions, military support, Positioning, Navigation, Earth Imaging, Climate & Environment monitoring and Communications etc.   

According to the Index of Objects Launched into Outer Space, maintained by the ‘United Nations Office for Outer Space Affairs’ there were 7389 individual satellites in the space at the end of April, 2021, showing an increase of 29.97 % as compared to 2020 ; The database also shows that since inception 11,139 satellites have been launched out of which only 7389 are in the Space, while the rest have either been  burnt up in the atmosphere or have returned to Earth in the form of debris, much like recent Chinese Long March 5C rocket, which dived into the Indian Ocean ;

The main fact is that  the dependence of various industries upon the satellite data has made the  total numbers of  satellites go up rapidly every year ;  By a natural argument it can be said that the growth of quantum of  such Space debris is directly proportional to the rise in the number of satellites sent in to the outer space ;

Concerns Over this Accumulation of Space Debris

a)      Most of this ‘Space junk’ is flying at very high speed and there are very high chances of unwarranted accidents to occur which will produce a dangerous amount of Space debris which will also disturb the channels of neighboring active satellites, transmitting critical information to Astronauts and International Space Centers ;

b)      This situation also has a potential to create a chain reaction leading to mass disaster which poses a  threat to safety of people & property on Earth and in Space as well as to the future operations and Space Explorations ;

c)      This is why Space Traffic Management &  Monitoring Space Debris are global challenges that need to be addressed immediately ;  However, it is a good news that  IADC, an international  forum of governmental bodies has been formed  for the purpose ;

[Source: An article by N. Mohanta in ‘Geospatial World’ – 28/05/2021]






Popular posts from this blog

Black Fungus - A General Awareness

  Black Fungus   Slowly following   the Covid-19 Pandemic   a    rare,    deadly & aggressive fungal   infection is spreading as epidemic in India ; As per   recent BBC news already nearly 9 thousand cases have been detected   in various states   like Gujarat, Rajasthan, Tamil Nadu, Orissa and Telengana etc.   How Caused   - Black Fungus or Mucormycosis is caused by a group of fungi that normally live in the environment, particularly   as moulds found in   soil and in decaying organic matters such as leaves, compost piles or rotten wood (CDC- 13/05/2021) ; People get Mucormycosis  of which there are several types by breathing in the fungal spores ; It may also come in hospitals and homes from  air humidifiers or oxygen tanks containing dirty water ; Line of Treatment According to Centre for Disease Control (CDC), the infection needs to be caught early as it is aggressive & dead tissues have to be scraped away ;   Unfortunately, surgeons   sometimes   have to remove 

Covid 19 - The DANGER of a Two Speed Response

  Covid-19 – The DANGER  of   a Two Speed Response   A Global Battlefield The human civilization is just in the middle of a battle now, the battle against a tiny virus   called   Coronavirus ;   To survive, our civilization has to   fight unitedly   to win over this enemy   where   the battlefield remains to be the   whole   area of our planet ; The UN Secretary General Mr. Antonio Guterres   on   24 th   May,   2021, has urged the countries to take bold   decisions now to both end the crisis and   build a safe & healthy future for all ;     The Grim Picture As per a recent report of the WHO Chief,   Mr. T.A. Ghebreyesus, there have been more Covid-19   cases   so far this year than in the whole of   the previous year (2020),   “On current trends” said he, “ the number of deaths will overtake last year’s total within the next three weeks” ;   As against this scenario, most of the   vaccine doses or 75 % ,   have been   administered   only in just   10

Pandemic's Effect on Family Relationship

  Pandemic’s Effect on Family Relationship   It will be a very interesting   discussion if we look into the matter   of   some sort of changes   in family   relationship in this global pandemic atmosphere ;   This Covid-19 Pandemic, being   an once-in-a-century affair, followed by a series  of Lock-downs in almost  every  country,  has so far affected in every  sphere  of  human life, namely, social, cultural,  economic  & also in   family-lives in  almost all the  corners of our planet ;   However,   to   limit the   volume   of this   writing ,   let us   confine our   brief  discussion only  to the  changes  that might have been noticed   due to this pandemic situation  within the family  circles  of two  different  economic  sectors,  i.e., the Working Class &/or Lower- Middle Class People   and   the   Upper-Middle Class people ; At the beginning it should be made clear that the points narrated  below  are not at all comprehensive,  written on the basis of only