If they're hiding from us on the other side of the sun, then that means they're probably on the same orbit as the Earth, but a full half orbit ahead. But then y

If they're hiding from us on the other side of the sun, then that means they're probably on the same orbit as the Earth, but a full half orbit ahead. But then you'd think spacecraft like the Parker Solar Probe which has a perihelion of only 0.04 AU and a very eccentric orbit would be able to spot it. Hiding on the other side of the sun only hides them from direct observation from exactly Earth. https://en.wikipedia.org/wiki/Parker_Solar_Probe https://en.wikipedia.org/wiki/Parker_Solar_Probe