There have been a few IMAX documentaries about mankind's exploration of space. Some have relied on the novelty alone ("Hey, we got an IMAX camera all the way up here....and it weighs nothing!") and some have relied on the sheer brilliance of the mission (one memorable line in "Roving Mars" described the difficulty of landing an unmanned machine there as equivalent to a basketball player throwing a ball from Los Angeles, across the US and it going through a hoop in Madison Square Garden [NYC] without touching the rim).
"IMAX: Hubble" is something else entirely, it conveys the jaw-dropping awe of being able to peer so far(out) into space that we are actually time-traveling, looking back to the beginnings of our Universe. To actually see a "space-womb" where stars are born.
This movie sparks the imagination and wakes up parts of the viewers brain like few things can, and it does it very well. A must see, must own, and must share with anyone you call family or friend. By understanding the larger universe more, we get to know ourselves and each other better, too. Don't ask how that works, it just does.