According to our current understanding of physics, it is not possible to travel faster than the speed of light. The theory of relativity states that the speed of light in a vacuum is an absolute constant and cannot be exceeded by any material object or information.
If we were to consider a hypothetical scenario where faster-than-light travel were possible, it could potentially create situations where you could observe events from Earth's past. For example, if you were able to travel far away from Earth at a speed faster than light, you could potentially look back and observe light that was emitted from Earth in the past.
However, it's important to note that this is purely speculative as we don't currently have the technology or scientific understanding to achieve faster-than-light travel. Additionally, there are many theoretical and practical challenges associated with such travel, including the violation of causality and the preservation of information.
In summary, while the idea of observing the past on Earth through faster-than-light travel may be an interesting concept, it is purely hypothetical at this point and not supported by our current understanding of physics.