In the early days, ABE was considered a secondary survey system," Yoerger said.
The ABE team went on to build a direct descendant, a new AUV called Sentry, launched in 2008.
Once again Yoerger joked, "Like the rest of us, ABE tried to retire, but we wouldn't let it.
A few days after ABE disappeared, he wrote, "We've shed our tears for our robotic friend, we're ready to move on.
Before the ABE LC, many students left the department because they had trouble succeeding in general introductory classes such as calculus, physics and chemistry.
Achieving ABE LC objectives at ISU is an ongoing process as the LC, course links, course contents, teaching methods and activities are annually re-evaluated.
Recent university budget cuts pose concerns, and ABE LC leaders are unsure of the university's long-term ability to support learning communities at current funding levels.
One unmet goal of the ABE LC has been recruiting students from under-represented groups.
The 1999 cruise launched ABE on a new career as scout and bloodhound, searching for hydrothermal vents.
That's where ABE comes in, using its thermal, chemical, and optical sensors to "sniff" out plumes.
A 2000 cruise to the East Pacific Rise tested the "A" for autonomous in ABE when its inventors cut the umbilicus.
On a 2002 cruise to the Galapagos Rift, ABE showed its value working in tandem with other vehicles.