Stanford University researchers have developed a spider-like robot dubbed ReachBot, which could potentially be utilized for exploring Martian caves or lava tubes. The research paper detailing this innovation was published in the April 17th edition of the journal Science Robotics.
Robots resembling spiders could be used in the future to explore caves or lava tubes on Mars. Image source: Stanford University, USA
In recent years, space scientists have developed a range of robots capable of acting as explorers on the surfaces of other planets or moons. These robots typically come in two forms: small rovers capable of squeezing through tight spaces, or larger machines capable of rolling across surfaces. In the latest research, scientists are attempting to create a medium-sized robot that can explore areas inaccessible to the first two types of robots, such as caves or lava tubes.
Inspired by a spider known as the "daddy longlegs," the team has developed ReachBot. They observed that daddy longlegs spiders can navigate various terrains, including cave walls, relatively easily.
ReachBot has several extendable, pole-like legs for walking. To enable ReachBot to grip onto rock walls, the research team designed three pincer-like feet. They also added a processor to analyze the terrain around the robot and identify areas suitable for foot placement, allowing the robot to explore autonomously.
Test results show that this robot can climb walls, even crawl across ceilings, and detect lava tubes near the Pisgah volcano in the Mojave Desert.
The research team suggests that ReachBot could explore places inaccessible to other types of robots, potentially uncovering evidence of life.
