Actually,
There are
a surprising number of authoritative reports
of anomolous materials
1. from the archeological dig at Roswell
2. from alien implants taken from abductees.
3. from within authentic crop circles vs outside the authentic crop circles.
Naysayers typically very hypocritically and absurdly dismiss such hard evidence out of hand
not because
the even scientific evidence is lacking
but merely
because the REAL FACTS DO NOT CONFORM
to the absurd biases and assumptions of the naysayers.
The hypocritical absurdities of the naysayer’s fantasies win out with them every time.
2. from alien implants taken from abductees.
3. from within authentic crop circles vs outside the authentic crop circles.
Neither of which you have any evidence for except the writings of other true believers like yourself. There is absolutely no evidence for either of the things you claim.