In the year 2500, the biggest advancements in space travel include antimatter propulsion systems, which enable us to travel vast distances in a short amount of time; advanced nanotechnology, which allows spacecraft to self-repair and adapt to various space environments; and the creation of space elevators, making access to orbit more affordable and environmentally friendly.
Imagine you are a time traveler from the year 2500 visiting present-day Earth. Describe the biggest technological advancements that have been made in the field of space travel.