For a scenic view, and an answer-page for Guess The World...

There
was nothing moving in sight on the fairly level plane, spawled off by
Jupiter's fierce heat when the System was young, whose horizon was a
scant mile away. So they started walking. Gravitation was surprisingly
strong, indicating unusual density. This fact, plus the intense cold
which slows down the dance of the atoms, accounted for the fact that
Five still retained remnants of an atmosphere.
The
hikers even saw traces of water vapor, in form of frost. Occasionally
they passed clumps of mossy or lichenous growth. Twice they observed
colonies of slug-like creatures growing, reproducing, and dying with
amazing rapidity...
Arthur K Barnes, Interplanetary Huntress (1956)
…The detailed examination
of the photos would take several hours; after a while the endless repetition of
impact craters, fractured rocks, and occasional patches of frozen gas produced
something close to boredom. But no one
could tear himself away from the screen; and at last, after more than half the
stored images had been scanned, patience was rewarded.
The crucial sequence had been taken
with a telephoto lens, just as Jupiter V was emerging from shadow. At one moment there was a black screen; then,
magically, a thin crescent suddenly materialized, as the little moon came out
of eclipse.
Kimball was the first to spot the
curious oval patch near the terminator.
He froze the picture, and zoomed in for full magnification. As he did so, there were simultaneous gasps
from all his colleagues.
Part of the side facing Jupiter had
been sheared off flat, as if by a cosmic bulldozer, leaving a perfectly
circular plateau several miles across.
At its center was a clear-cut, sharply defined rectangle, about five
times as long as it was wide, and pitch-black.
At first glance it seemed to be a solid object; then they realized that
they were staring into shadow; this was an enormous hole or slot…
Arthur C Clarke, The Lost Worlds of 2001 (1972)
>> Guess The World - Sixth Series
“...and now they were sending him to Jupiter, to the little innermost moon, to take his place with those marooned, bestial outcasts of three planets whose luck had fallen down on them when they needed it. (…) Sometimes he thought of that living tomb ahead, where he must fight for food and shelter and life itself among the dregs of three planets — hairy brutes like himself from Earth and the Moon, tall gods without emotion from Venus, little fragile Martians that had run amuck under the strain of conditions on other planets than their own. Once, only once, police landed there to take off a man who had been pardoned, and it was nip and tuck for a while!”
Dennis McDermott, The Red Spot of Jupiter (Wonder Stories, July 1931)
>> Guess The World - Seventh Series
Note from Zendexor: This extract was sent to me by Lone Wolf about six months ago as part of his commentary on GTW 609, and I marked it at the time for an Amalthean GTW, but what with one thing and another I've delayed its display until now.
"Dennis McDermott" appears to be a pseudonym, but online research has not revealed his real name.