At dawn on August 10, 2024, Yasmin Mahani walked through the smoking ruins of al-Tabin school in Gaza City, searching for her son, Saad. She found her husband screaming, but of Saad, there was no trace.“I went into the mosque and found myself stepping on flesh and blood,” Mahani told Al Jazeera Arabic for an investigation that aired on Monday. She searched hospitals and morgues for days. “We found nothing of Saad. Not even a body to bury. That was the hardest part.”Mahani is one of thousands of Palestinians whose loved ones have simply vanished during Israel’s genocidal war on Gaza, which has killed more than 72,000 people.According to the Al Jazeera Arabic investigation, The Rest of the Story, Civil Defence teams in Gaza have documented 2,842 Palestinians who have “evaporated” since the war began in October 2023, leaving behind no remains other than blood spray or small fragments of flesh.Experts and witnesses attributed this phenomenon to Israel’s systematic use of internationally prohibited thermal and thermobaric weapons, often referred to as vacuum or aerosol bombs, capable of generating temperatures exceeding 3,500 degrees Celsius [6,332 degrees Fahrenheit].The chemistry of erasureThe investigation detailed how specific chemical compositions in Israeli munitions turn human bodies into ash in seconds.Vasily Fatigarov, a Russian military expert, explained that thermobaric weapons do not just kill; they obliterate matt …