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An air tight tube should work. They will need some way to attach it alien ship, but as long as there is an opening to get in, they can put clamps on its edges, and tie the tube to these clamps.

But the bigger issue that there is no air in the alien ship, or their air is no good for us humans. We could pump our air into the alien ship, but it could mess up their systems (oxygen is quite corrosive to many substances). In fact, if alien ship is robotic, there is no reason to make it air-tight.

In addition, alien ship might have radiation or toxins. So your astronauts will still have to wear suits inside the ship, so no need for an airtight tube leading to it. A couple guide cables across space will do.

And if the alien ship just happens to have perfect environment for humans, it looks too much like a trap, imho :)

air tight tube should work. They will need some way to attach it alien ship, but as long as there is an opening to get in, they can put clamps on its edges, and tie the tube to these clamps.

But the bigger issue that there is no air in the alien ship, or their air is no good for us humans. We could pump our air into the alien ship, but it could mess up their systems (oxygen is quite corrosive to many substances). In fact, if alien ship is robotic, there is no reason to make it air-tight.

In addition, alien ship might have radiation or toxins. So your astronauts will still have to wear suits inside the ship, so no need for an airtight tube leading to it. A couple guide cables across space will do.

And if the alien ship just happens to have perfect environment for humans, it looks too much like a trap, imho :)

An air tight tube should work. They will need some way to attach it alien ship, but as long as there is an opening to get in, they can put clamps on its edges, and tie the tube to these clamps.

But the bigger issue that there is no air in the alien ship, or their air is no good for us humans. We could pump our air into the alien ship, but it could mess up their systems (oxygen is quite corrosive to many substances). In fact, if alien ship is robotic, there is no reason to make it air-tight.

In addition, alien ship might have radiation or toxins. So your astronauts will still have to wear suits inside the ship, so no need for an airtight tube leading to it. A couple guide cables across space will do.

And if the alien ship just happens to have perfect environment for humans, it looks too much like a trap, imho :)

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air tight tube should work. They will need some way to attach it alien ship, but as long as there is an opening to get in, they can put clamps on its edges, and tie the tube to these clamps.

But the bigger issue that there is no air in the alien ship, or their air is no good for us humans. We could pump our air into the alien ship, but it could mess up their systems (oxygen is quite corrosive to many substances). In fact, if alien ship is robotic, there is no reason to make it air-tight.

In addition, alien ship might have radiation or toxins. So your astronauts will still have to wear suits inside the ship, so no need for an airtight tube leading to it. A couple guide cables across space will do.

And if the alien ship just happens to have perfect environment for humans, it looks too much like a trap, imho :)