depends on where your exploring
In detail--more than a lifetime.
We can't estimate because we can't see the edge of it
2 hours 36 minutes, 40 seconds
how long was bartolomeu dias an explorer
2 years
I thick it was 11
Camp, explore, take photos.
As there are no planets (new or old) close enough for astronauts to explore, this cannot be answered.
Thee educational assessment test EXPLORE is usually given to students in the 8th grade.
They wanted more land and power. A long time ago near the early 1400's
1-2 years
IE