This is where Sims can get a job in the Science Career, attend Logic, Gardening, Inventing, Science and Scuba Diving classes. Sims can also tour the science lab. If a Sims is collecting insects they can sell them as specimens to the lab. Donating insects is slightly more rewarding than selling them via the inventory, so it is worth the trip. Sims can WooHoo in these rabbit holes, but they might get caught by security and be asked to leave. This is also one of the properties Sims can partner with and own in The Sims 3. It's the most expensive but also the most profitable. If Ambitions is installed, the firefighter profession has a special disaster, which is a Space-Time Rift.
Science labs generate the following red map tag in-game: