A US $1 bill weighs ~1 gram. Solar mass is ~2×10³⁰ kg, needing ~2×10³³ bills. Starting at $1 and doubling daily reaches that around day 112 (2¹¹¹ bills exceed 1 solar mass). At that point the pile's gravity would rival the Sun's and catastrophically disrupt the solar system's orbits.
A new species of cat has been discovered for the first time since 1923: the Tilcayo Tiger Cat.
A man in Bolivia mistook it for a weird looking, adorable little housecat, but it's actually just a new species.
Image credit: Paola Nogales-Ascarrunz