On upcoming trips to Mars, they will bring new robots for exploration. While the interspace agency has rover-type devices, they are not capable of entering underground caves or moving on uneven terrain. That is why they have created Spot in conjunction with the company Boston Dynamics.
On the one hand, this type of robot dog has been the most efficient model independently. Furthermore, they must be able to carry enough payload so their ears, eyes, and brain can help them navigate the red planet. They must also be able to traverse celestial bodies with good levels of stability, speed, and endurance.
On the other hand, NASA's Jet Propulsion Laboratory (JPL) states on its website, Spot's "intelligence" could be used to find microbial life beneath the surface of Mars. The reason NASA chose Boston Dynamics was because they are capable of moving autonomously, without the need for communication with the base. Walking on four legs provides agility and endurance to traverse terrain and enter caves. The presence of these robot dogs will cause a revolution in interplanetary expeditions.