HOW’S THAT SPACE PROGRAM COMING ALONG? Venus Harbors Secret Asteroids That Could Threaten Earth, Study Warns. “These so-called ‘Venus co-orbitals’ share a similar path around the Sun with our neighbor planet but aren’t harmless tagalongs. According to a paper under review for the journal Astronomy & Astrophysics, and currently hosted on arXiv, a yet-undetected group of the asteroids could pose a threat to Earth.”