An escape pod adrift
The Malon escape pod was a type of small escape pod used on some types of Malon export vessels.
Roughly conical in shape, they seem to be able to hold 1-2 person per pod. Each individual pod has a large impulse engine on its aft section.
In 2375, when one such vessel's core started to breach, the crew abandoned ship in 37 escape pods. The pods then sent an automated distress call, picked up by the USS Voyager. When they arrived, the pods were heavily contaminated with theta radiation and only 2 Malon survived. (VOY: "Juggernaut")