It also slows down more as you move faster, which means astronauts some day may survive so long in space that they would return to an earth of the distant future.

当你移动得更快时，它的速度也会减慢，这意味着有一天宇航员可能会在太空中生存很长时间，以至于在遥远的将来他们才会回到地球。

youdao

Once you are in this geostationary orbit right over the tower, just lower your carbon nanotube cable down from the satellite, tether it to the tower here on Earth.

一旦你来到这个塔旁的地球静止轨道，只需把碳纳米管电缆从卫星上放低然后将其系在位于地球的塔端。

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They are made in 10 minutes, used in 20 minutes and normally remain on the earth for over 100 years since they are hard to be broken down.

它们在10分钟内制成，在20分钟内使用完毕，但由于很难被降解，它们通常会在地球上残留100年以上。

youdao

But the container breaks down in the earth within one to five years.

VOA: special.2010.06.01

When we have both our feet firmly on the ground, and when we are down to earth we do not have our noses in the air.

VOA: special.2009.03.08

In fact, some experts believe petroleum is not a fossil fuel at all but some sort of gloppy syrup that is produced deep down in the earth under extremely hot conditions and is pushed up by intense pressure.

FORBES: Fact and Comment

The man portrayed in the Rolling Stone article as arrogant comes off as far more down to earth in the book.

NPR: McChrystal Takes Blame For Rolling Stone Article

The article in Down to Earth claims that the area covered by glaciers would drop from 500, 000km2 to 100, 000km2 by 2035, a claim found in the IPCC report but not in the WWF report.

ECONOMIST: Glaciers and the IPCC