"And this," says Dr.Williams, "is good news for long-term space travel."

威廉姆斯博士说：“对于长期太空旅行来说，这是好消息。”

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NASA researchers consider it ideal for inclusion in possible future long-term space missions when crops would need to be grown on spacecraft.

国家航空和宇宙航行局研究人员认为，当需要在太空船种植作物时，将它纳入潜在未来长期航天任务(作物)是很理想的。

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The stunt was part of 16 experiments performed in recent weeks by Wakata, the first Japanese astronaut to take part in a long-term space mission.

若田光一是第一位参加长期太空任务的日本宇航员。 展示特技是最近几个星期他要进行的十六个实验项目的组成部分。

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And NASA is also being called on to develop new technologies to solve problems involved in long-term space flight for humans and robots.

VOA: special.2010.04.28

Also on board is a new exercise machine, which is part of ongoing studies into the effects of long-term space flight on muscle and bone loss in astronauts.

VOA: standard.2010.04.05

But as he says, the search for life in outer space is a long-term goal, and he is still hopeful.

VOA: special.2010.05.25

Co-author Dr Benjamin Blaiszik, now at Argonne National Laboratory, explained that the self-healing circuitry could find uses in a military setting where it would be exposed to extreme stresses or in long-term space applications.

BBC: Time to heal: The materials that repair themselves

We will focus our future research aboard this station on the long-term effects of space travel on human biology.

CNN: Bush: 'It is time for America to take the next steps' in space

Usachev has experience dealing with the consequences of a long-term stay in space, having spent two long-duration missions on the retired Russian space station Mir.

CNN: Discovery brings home Alpha crew