The Shuttle’s Final Flight: Farewell to the Space Age

Published in Mainichi Shimbun
(Japan) on 10 July 2011
by (link to originallink to original)
Translated from by Nathan Biant. Edited by Gillian Palmer.
Wild applause and nostalgia. Hopes and anxieties for the future, and the pain of past sacrifices. Various thoughts and challenges remain as the American space shuttle takes off on its last flight.

It’s been 30 years since Columbia’s maiden flight in April 1981. A total of over 800 people, 356 from 16 different countries, were transported on an orbit of the earth. In 1992, seven Japanese astronauts, starting with Mamoru Mohri, took a trip into outer space on the shuttle.

As if flying on an airplane, I want to go on a round-trip tour of earth and outer space. There are reusable launch vehicles to make such a dream a reality; I am sure that they are making them as close to the zero-gravity feeling of space as possible. Although they are American vehicles, they have had a big effect on the rest of the world. I want to see an era that has built itself to be able to stretch out into space.

For Japan, which doesn’t have a manned spaceship of its own, in order to accumulate some experience of pilots who have flown into space, the shuttle was a valuable foothold. It was also because of the shuttle that they acquired the status of having an international team member in space, coping well with their long stay at the International Space Station.

However, I have to say that from a safety and cost perspective, the shuttle plans were “a failure.”

A total of 14 people were victims in the Challenger accident of 1986 and the Columbia one in 2003. I can in no way say that the odds of two accidents occurring in the thousands of flights are low. The background is that launch vehicles have complex designs and systems in place.

As such, launch objectives have been restricted because safety costs have been bumped up. There is no spare time or money left in America at the moment to renovate ground facilities and worn out fuselages.

The Obama administration has decided to go back to the single-use spaceships like the Apollo spacecraft, and is working out the details for a manned flight plan to the moon, asteroids and Mars. However, with the way things are going the plans to do this are unclear.

The development of manned transport that will link earth with the International Space Station has been put in non-governmental hands. It’s going to be many years yet before the first unit will fly, so there is no other choice but to pay the high costs of “hitch-hiking” on Russia’s Soyuz spacecraft.

We are moving away from the idea of a next-generation shuttle which remains undeveloped, and the world map of space will probably undergo some changes. The International Space Station, which was established with the shuttle at the forefront, is also under question as to its cost effectiveness and reason for existing.

While this is going on, Japan has changed its future hitching arrangements from the shuttle to the Soyuz. What place will its manned flights take in the future? Giving an answer to this is not going to be easy, as at the moment Japan is up to its neck in dealing with the two-fold tsunami and nuclear power plant disaster.

What about working on improving the unmanned asteroid probe “Hayabusa?” Or looking for a way to carry out its own manned flight? Making priorities and strategies clear has become more crucial than ever.


社説:シャトル最終便 宇宙の一時代に別れ

惜しみない拍手とノスタルジー、過去の犠牲への痛みと将来への期待や不安。さまざまな思いと課題を残し、米スペースシャトルがラストフライトに飛び立った。

 1981年4月のコロンビア号の初飛行から30年。シャトルは16カ国356人、延べ800人以上を地球周回軌道に運んだ。92年の毛利衛さんを皮切りに日本人宇宙飛行士7人もシャトルで宇宙に旅した。

 飛行機に乗るように地球と宇宙を往復したい。そんな夢を具現化する再利用型の往還機が、無重量の宇宙をより身近なものにしたことは間違いない。米国の乗り物でありながら世界にも大きな影響を与えた。宇宙開発に一時代を築いたことを評価したい。

 自前の有人宇宙船を持たない日本にとっては、有人飛行の経験を積むための貴重な足がかりだった。国際宇宙ステーション(ISS)での長期滞在もこなし、宇宙における国際チームの一員として地位を獲得したのもシャトルがあったからこそだ。

 しかし、シャトル計画そのものは、安全面とコスト面で「不合格」だったといわざるを得ない。

 86年のチャレンジャー事故、03年のコロンビア事故で合計14人が犠牲になった。百数十回に2度の事故は、決して低い確率とはいえない。背景には往還機であるがゆえの複雑な設計やシステムがある。

 結果的に安全対策はコストを押し上げ、打ち上げ目的も限定された。老朽化する機体や地上の施設を刷新する余力も、今の米国には残されていない。

 米国のオバマ政権は、アポロ型の使い捨て宇宙船に回帰することを決め、月、小惑星、さらに火星をめざす有人計画を打ち出している。しかし、そのためのロケットの設計はこれからで、先行きは不透明だ。

 地球とISSを結ぶ有人輸送機の開発は民間にゆだねられた。初号機が飛ぶまでに数年かかり、その間はロシアのソユーズに高額の「ヒッチハイク」を頼まざるを得ない。

 次世代輸送機が不在のままシャトルが引退することで、宇宙の世界地図は変わるかもしれない。シャトルが主役となって建設してきたISSも費用対効果や存在意義が問われている。

 そうした中で、ヒッチハイク先がシャトルからソユーズに変わる日本は、将来の有人飛行をどう位置づけていくのか。津波と原発の二重の災害の対応に追われる今、答えを出すのは容易ではない。

 小惑星探査機「はやぶさ」のような無人技術に磨きをかけるのか。独自の有人飛行を模索するのか。優先順位と戦略を明確にすることが、今まで以上に重要となっている。
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