Human space flight beyond Mars is just not possible because of the increased exposure to galactic cosmic rays,

Like most scientists, we felt that in the past human space exploration had been driven by politics and the science had been extremely thin.

The interesting thing is the models for the most part suggest brown dwarfs should be free-floating in space, so it's a bit of a puzzle.

Sculpture occupies real space like we do... you walk around it and relate to it almost as another person or another object.

We have not been created out of nothing, but from primeval "ur-matter," atoms formed billions of years ago that have for a brief while been gathered into collections that think they are us.

Autonomous robots alone will be unable to realize those scientific goals in the foreseeable future,