"But surely there must be some way of calling their attention even sooner?" said Robin. "Do you have flares?"
"You're right," Peter said excitedly. "We've got them. And it is night outside. If we use our flares, they could be seen on any decent-sized telescope. Shall we set them off?"
Robin nodded. "No time like now."
Peter reached again into the floor storages, opening another section, and began to pull out another space suit. "This was Arkady's," he said. "It should fit you."
It did. This time, Robin felt none of the uneasiness that had assailed him on his previous experience on the outside. In a few minutes, he and Peter were standing a short distance away from the rocket and setting out the flares.
Although the suit was cumbersome, it was not too uncomfortable. Instead of tight bandaging, the fabric of the suit consisted of some sort of self-inflating air sacs, which maintained an equal and natural pressure on the surface of Robin's body. The helmet, which was really airtight and warmed, was entirely comfortable, although again the breathing was a matter of a forced intake and a willful exhalation.
They set up the flares, which were magnesium-burning giant candles, a safe distance from the rocket, wired them to a detonator powered from the ship. Then, before going back, Robin and Peter simply stood and looked around.
All about, the giant bare mountains ringed the crater. Their gaunt, jagged outlines were a black ring against which was set the star-strewn wonder of the sky, in whose exact center slowly rotated the marvelous globe of Mother Earth.
The eerie Earthlight threw odd shadows and dark spots across the grayness of the plain. Here and there the mysterious-looking domes rose, the tops of bubbles as Robin had reason to know. In other places smaller craters and ringed ridges broke the surface.
"It looks desolate and barren," commented Peter on the helmet-radio. "Yet, you know, when we landed in the sunlight of the Moon's day, it wasn't all like this. There were patches of low scrubby plants growing in the lowest sections near spots where some air must have been seeping out. This crater is considerably lower than much of the surrounding areas on this central part of the Moon. The air here may be almost unnoticeable, but it is still just a bit denser even than it must be on the 'seas' beyond these crater walls."