Mysterious interstellar object 3I/ATLAS made its closest approach to Earth on December 19, coming within just 167 million miles. “The discovery of interstellar objects over the past decade offers new opportunities for humanity to send time capsules to interstellar space,” he concluded. To attach the message to objects like 3I/ATLAS, Loeb proposed using a “high-power laser beam to engrave a message” or “design interceptor missions” to attach technological objects to their surface. Nobody knows when we’ll be able to observe the next interstellar object careening through our neck of the cosmic woods. He “would have loved to hitchhike 3I/ATLAS and let it carry my remains into interstellar space,” he wrote, “if offered the opportunity.”More on 3I/ATLAS: Mysterious Interstellar Object Now Approaching Earth