Another amazing week on Planet Earth, with news stories ranging from quantum computers are revealing an unexpected new theory of reality to James Benford’s search for extraterrestrial artifacts to the 2.5 billion Tyrannosaurus rex that lived during the species 2.4 million years of existence on Earth. Quantum computers are revealing an unexpected new theory of reality–A powerful new idea about how the laws of physics work could bring breakthroughs on everything from quantum gravity to consciousness, says researcher Chiara Marletto for New Scientist. How Many Alien Probes Could Have Visited Earth? Asks James Benford for Centauri Dreams–“Benford is continuing his research into the still nascent field known as SETA, the Search for Extraterrestrial Artifacts. A plasma physicist and CEO of Microwave Sciences, Benford became intrigued with recent discoveries about Earth co-orbital objects — there is even a known Earth Trojan — and their possibilities in a SETI context. If we accept the possibility that an extraterrestrial civilization may at some point in Earth’s 4.5 billion year history have visited the Solar System, where might we find evidence of it?”