Three news stories that have recurred throughout my lifetime - or the last sixty years, at least -

i) Archeologists have uncovered the remains of Noah's Ark on Mount Ararat.
I've read this one four times over the decades.

ii) A cure for cancer will be found very soon (usually within months).
Cynics claim that this one is trotted out when the donations toward research are drying up.

iii)Hunger will be eradicated from the planet within x years.
We wait, and wait, and ...