https://yestino.com/entities/nasa-mars-b5027bEvery event involving NASA Marsenhttps://yestino.com/events/without-new-landers-or-rovers-it-s-helicopters-or-bust-for-n-1869a8https://yestino.com/events/without-new-landers-or-rovers-it-s-helicopters-or-bust-for-n-1869a8Tue, 01 Sep 2026 11:00:35 GMTNASA's cost estimate for SR-1 Freedom is $2.1 billion, but that doesn't include the helicopters. Sources: Ars Technica