The sea floor, under water mountains, sea life, under water lava flows, etc.
As far as civilian submarines, technically no, as tourist submarines aren't actually transporting from point A to point B. For military submarines, absolutely. People using submarines as transport vessels are Special Forces (e.g., SEAL's), Navy research scientists (Polar Expeditions), and other individuals designated as required.
Engineers.
Medical research scientists.
They are used for scientific research as well as warfare. Smaller submarines were used for scientific research (underwater animals, plants, etc.)
Most submarines have propellers that spin, pushing them forward. A few smaller research submarines use a water jet for propulsion.
he created it to bring scientists into the war effort. The OSRD spurred improvements in radar and sonar, new technologies for locating submarines underwater.
Scientists get information from research, observations, experiments, and other scientists.
Civilian-Under water research. Military-Stealth
Submarines that do science.Most scientific submarines conduct oceanographic research. The Ben Franklin drifted in the Gulf Stream conducting research on currents. The Alvin and the US Navy's NR-1 conduct wreck dives and deep-sea research.The ocean is the last frontier on Earth that has not been fully explored, submarines are slowly helping to roll back the veil of the unknown.
With submersibles, sonar, magnetometers, and satellites.
So scientists don't do other things when their suppose to be doing research
Venus was the planet that the spacecraft Magellan enabled scientists to research extensively.