宇宙ゴミをどうする…

explorer
PR

宇宙ゴミとして日本でも知られるようになっている。

1957年10月より開始された宇宙開発事業が進む一方で、宇宙ゴミ、スペースデブリ(Space debris)または、軌道上にあるためオービタルデブリ(Orbital debris)などと呼ばれておりますが、ロケットや惑星探査、衛星事業などの宇宙開発事業が進む一方で、多くの宇宙ゴミをどうするのかという問題がすでに世界中で議論されています。

当初は衛星開発運営者などは、こういった問題も考えなければいけないと同時に、すでに宇宙開発事業者が進む一方で、宇宙開発事業者が出すゴミを回収する宇宙のゴミ屋さん的なビジネスにも注目が集まっています。

スペースデブリ(Space debris)、オービタルデブリ(Orbital debris)、つまり宇宙ゴミがどのような感じかわかりやすくESA(European Space Agency)が公開している動画を埋め込みます。

Space debris – efforts to clean up space European Space Agency, ESA

The European Space Agency (ESA) is part of an international effort to monitor and – ultimately – tackle space debris. This junk – accumulated in orbit since the dawn of the space age sixty years ago – poses an increasing risk to operational spacecraft.

ESA is developing missions to tackle the problem to help prevent a serious collision in space. The Agency is also monitoring possible dangers caused by fragments of redundant spacecraft falling to Earth, such as China’s space station Tiangong-1 – due to enter the atmosphere in the coming months.

Space debris – a journey to Earth European Space Agency, ESA

Space debris - a journey to Earth takes the audience on a journey from the outer solar system back to our home planet. The objects encountered along the way are manmade. Originally designed to explore the universe, these are now a challenge for modern space flight. An estimated number of 700,000 objects larger than 1 cm and 170 million objects larger than 1mm are expected to reside in Earth orbits.

The video gives a closer look at the different regions used for space flight and explains how mitigation and removal measures could preserve future usage of these orbits.

Produced for the 7th European Conference on Space Debris, 18-21 April 2017.

Space debris story (2013)  European Space Agency, ESA

The story of space debris highlighting how the unintended consequences of intense spaceflight activity during the past 60 years has resulted in a growing population of debris objects that pose hazards to safe space navigation. In 2013, experts estimate that 29 000 objects larger than 10 cm were orbiting Earth.

The video also highlights the current state of debris mitigation measures and presents several concepts for removing defunct satellites from economically vital orbits now being studied by space agencies and industry across Europe. 

This video was produced for the 6th European Conference on Space Debris, 22-25 April 2013.