Robots aren't advanced enough yet but we do use probes, Man will do more when we perfect a faster mode of intersteller travel.
Astronauts primarily explore space within the confines of our solar system, such as the Moon, Mars, and the International Space Station. They have not traveled beyond our solar system to explore the entire universe due to the vast distances involved and current technological limitations.
Simpler and cheaper.
Simpler and cheaper.
There are a lot of ways to explore the solar system. Some people, like NASA, see the solar system in stars by the Hubble Telescope satellite. But that satellite only checks the Earth. In order to explore the whole solar system, you must travel to Mars, Jupiter, Saturn, Uranus, and Neptune (Pluto is not considered as a planet in the solar system in this answer). If you want, you can also explore Venus and Mercury. But you cannot land on Mercury, especially on Venus (the hottest planet in the solar system). So now astronomers/astronauts only explore Mars - Neptune.
Astronauts have visited the Moon, which is not a planet but a natural satellite of Earth. Other than the Moon, astronauts have not visited any other planets in our solar system. Only unmanned spacecraft have been sent to explore other planets.
Science is related to the solar system, which is related to the astronauts
They could, but as of now, no astronauts have travelled to any other planets in the solar system.
robots
because they are far away from our solar system
they use meters
"Yes , Intuitive Surgical manufactures medical robots. The system is called the Di Vinci surgical system and is used for prostatectomies , cardiac valve repair and gynecologic surgical procedures."
With science.