Cosmo I.
Google
I am newly 28 years old and man...what a blast I had here. There is so much to do, so many fun cool hands-on activities everywhere you turn here. All for $11 too???? I probably spent 3 whole hours here, and I could have stayed for another 3. In terms of hours of fun per dollar spent this is an incredible value. If you're in any way remotely interested in fun interactive sciencey things, this is a must-stop in Albuquerque.
While many of the exhibits offer straightforward instructions, plenty of them offer the opportunity for you to apply yourself and learn by trial-and-error, especially the electrical and pneumatic circuits which were a very rewarding challenge to figure out.
I visited on a weekend, and it was pretty busy, but I never had to wait more than a few minutes to check out the next fun activity. This is a very kid-friendly environment, so expect lots of families with little ones running around and touching everything, but there's plenty of hand sanitizer located throughout the experiences for those concerned about such things.
Only note I really have is more than a few "exhibits" are pretty well-loved, to the point of only being semi- or even non-functional, which was a little bit disappointing at times, but for the price of admission and overwhelming number of experiences in great working order I was fully satisfied by the end.
Oh and make sure to take the elevator when you go upstairs!