According to our current understanding of physics, two places in the universe cannot occupy the exact same point in both time and space. This principle is known as the "no-overlap rule" or the "non-simultaneity principle."
The theory of relativity, specifically the theory of special relativity proposed by Albert Einstein, states that the concept of simultaneity is relative and depends on the observer's reference frame. Different observers moving relative to each other may experience events occurring in different orders or at different times. However, within a specific reference frame, an event occurs at a particular time and place and cannot occur at the same time and place as another event.
So, while events on Earth and Mars can be observed and measured with respect to their respective reference frames, they cannot exist at the exact same point in both time and space from a global, absolute perspective.
It's worth noting that the concept of spacetime in general relativity allows for a more intricate understanding of the relationship between space and time. However, even in general relativity, two objects cannot occupy the exact same point in spacetime simultaneously.