China’s Tianwen-2 spacecraft chased Earth’s tiny quasi-moon for 400 days and 1 billion kilometres — but just as it returned the first close-up image, new evidence challenged the leading theory that Kamoʻoalewa is a fragment blasted from the Moon
China’s Tianwen-2 spacecraft has reached Kamoʻoalewa and returned the first close-range image of the small asteroid that keeps…
