From the RMS Titanic to the SS Endurance, shipwrecks offer valuable—yet swiftly deteriorating—windows into the past. Conservators slowly dry marine wooden artifacts to preserve them, but doing so can inflict damage. To better care for delicate marine artifacts, researchers in ACS Sustainable Chemistry & Engineering developed a new hydrogel that quickly neutralizes harmful acids and stabilizes waterlogged wood from an 800-year-old shipwreck.