The verse contains scientific miracles, meaning you will experience a state after state or a sky above sky.
There are two recitations of the word: لَتَرْكَبُنَّ , either “Latarkabonn” or لَتَرْكَبَنَّ “Latarkabann”.
The Prophet Muhammad (saws) is addressed by the second recitation, meaning, you will travel through a sky after a sky. This what actually happened on the night of Issraa , when the Prophet ascended a sky after another.
This verse may also refer to experiencing a state after state in accordance with the relation with Allah (swt). Or, experiencing a stage after a stage or a position after a position, a trial after a trial.
So that, several meanings are contained in these words, but some scholars say: When Allah (swt) speaks about boarding in the Holy Qur’an He speaks about boarding in the sea (boarding a ship) and talks about all the tools of boarding:
{وَالْخَيْلَ وَالْبِغَالَ وَالْحَمِيرَ لِتَرْكَبُوهَا وَزِينَةً ۚ وَيَخْلُقُ مَا لَا تَعْلَمُونَ }
(And [He created] the horses, mules and donkeys for you to ride and [as] adornment. And He creates that which you do not know.)
However, Allah (swt) does not talk about spaceships nor about flying but He says:
{وَيَخْلُقُ مَا لَا تَعْلَمُونَ}
(And He creates that which you do not know.) (An-Nahl: 8)
Nowadays, we see how the man travel across the skies, from spaceship to another, from space station to another. We are not trying to follow the projective method, rather we want to say that this great verse opens scientific horizons for man and proves that the Holy Qur’an encompasses knowledge at any time.