For nearly a decade, a near-Earth asteroid named Kamo’oalewa has invoked speculation over how it came to orbit the Sun in total synchrony with Earth as though it shares some special relationship with our planet. A new study of the oddball may have pinpointed where it came from: a young impact crater on the far side of…
An odd little moon that orbits closely to Saturn just revealed its biggest mystery: a hidden ocean that lies beneath its heavily cratered surface.
NASA