there's no stopping these two science sisters.
meet camille and genevieve beatty, who at 13 and 11 are being hailed for building a functioning scale model of the mars rover that is now a permanent fixture at the famed new york hall of science.
the beatty rover is a near replica of the early version nasa sent to mars in 2004 and was unveiled in early august with hoopla that's made the red-headed north carolina siblings science rock stars.
"to have two young girls building our mars rover is exactly the kind of thing we want to have happen here," said margaret honey, president and ceo of the science center that sits on the grounds of the 1964 worlds fair in flushing meadows-corona park in the borough of queens.
the girls' drive to build their rover was inspired by a documentary on the robotic exploration of the red planet.