This definitely seems counter intuitive, but it is true the mind creates space. Let us try and understand this.
Science tells us that the age of the universe is 13.7 billion years old. This event is called the Big Bang. Using powerful telescopes scientists are hoping to peer into the past to see the beginning 13.7 billion years back. In order to do so the photon will have to travel a long way to reach us. The size of the universe will be the distance traveled by the photon from the big bang. This is the outer limit, because there was no universe before the big bang.
So, the size of the universe: 13.7 billion light years or 12.9 x 1025 meters. One light year is the amount of distance light travels in one year, which is = 9.46 × 1015 meters
If you assume the universe is 13.7 billion years old ‘right now’. After one second, the age of the universe will be 13.7 billion years + 1 sec. The photon now has to travel an additional 186,000 miles to reach us, which means the size of the universe has grown by 186,000 miles. After 10 seconds, the size of the universe would increase by 186,000 x 10 = 1,860,000 miles. After one year from now, the size of the universe will increase by 1 light year. 1 light year is the distance light travels in one year.
From the above, we can conclude that the Rate of expansion of the Universe = 1 light year per year.
So, as long as time flows, the expansion of the universe will continue at the speed of light. The expansion of the universe is directly related to the amount of time which has elapsed. The expansion of the universe will come to an end only when time comes to an end. When will that happen? No one seems to know this. According to Vedanta, time will come to an end when the nominated karmas for this life cycle of the universe are exhausted.
One interesting and very important conclusion one can make from this discussion is that the space we see around us is created by time. We saw that as time moves forward, the size of the universe increases. We understand what space is, it is visible, and we can experience it. What about time? Time cannot be seen, it is not visible, but it can be experienced – it is subtle. Anything subtle must be a mental event created by the mind, because the mind is also subtle. Mind creates time, and time creates space, therefore it is only logical to conclude that the Mind creates Space. In other words, the space time fabric is created by the mind itself. Mind is the underlying reality of the space time fabric.