On December 24, 2021, NASA’s InSights lander detected what was thought to be a massive quake on Mars. While InSight- a spacecraft designed by NASA to give Mars its first thorough checkup- was stationed on Mars, it noticed the planet’s surface starting to tremble beneath. This disturbance was thought to be a marsquake (the Mars version of an earthquake) with a magnitude of 4. To mark its extremity, the biggest marsquake recorded had a magnitude of 5. In articles published on October 27th, 2022, from NASA, the cause of this massive disruption was revealed.
A meteoroid between 15-40 feet in diameter, traveling 3.2 kilometers per second (equivalent to two miles per second), crashed into Mars nearly 2,174 miles from InSight. This Metroid released energy somewhere between 2.5 and 10 kilotons of TNT. For reference, the atomic bomb dropped on Hiroshima at the end of World War II was equal to 15 kilotons of TNT. This created a crater wider than a football field in the Amazonis Planitia region (located between the two main volcanic regions on Mars), reaching 492 feet across and 70 meters deep. Some of the material from this meteoroid even landed 23 miles away from the crater. Quoted from NASA, “This is one of the largest craters in our solar system ever observed as it was created.” When scientists from NASA started studying this strike a little further, they began connecting the dots back to their previous studies on Mars. They realized this was one of, if not the largest, meteoroid strike on Mars since NASA started studying the planet 12 years ago. NASA’s Mars Reconnaissance Orbiter even confirmed it was the most immense meteoroid impact on record in the entire solar system. They also discovered that the impact was not a marsquake but rather the thunk of a space rock hitting the surface of Mars.
Upon careful investigation, NASA scientists found “boulder-sized ice chunks”. This usually wouldn’t be such a significant discovery since ice had been found on the martian surface before, but this ice specifically was found buried closer to the equator than ever detected before on the planet. Due to how deep this crater is, it is allowing scientists to take an even closer look at the martian subsurface than ever before.
So how exactly can this affect future astronauts on Mars? One of the most crucial parts of a mission for astronauts is landing near an accessible ice source to find a way to make drinking water and create rocket fuel for their journey back to earth. Since this crater is as big as it is, this becomes a perfect landing point for future travelers for a safe and accessible mission. With the open landing of accessible ice, astronauts won’t have to worry about a limitation on these sources. Not only will it help with the creation of drinking water and rocket fuel, but it could also be a way astronauts can grow fresh crops during their mission. Another major advantage of the discovery of this crater is that it shows ice, which astronauts are so desperate to find, can be located in various places on the Martian surface, including somewhere close to the equator. Scientists can also benefit from this crater because, with careful inspection, they could start to better understand past and future climate changes on the planet.
So the main questions are, could this lead to the possibility of life on Mars? Could this lead to the discovery of another sustainable living planet? What discoveries on Mars will this lead to in the future? As of right now, there are no answers to these questions, but what we do know is this opens a new opportunity for further investigation. Only time will truly be able to provide us with the answers to these dier questions.