Lockdown strains another romance: California and Elon Musk Hindustan TimesRocketman (and woman): Elon and Gwynne, the pair who made SpaceX Yahoo NewsElon Musk Says It's Currently Too Expensive for Self-Sustaining City on Mars ComicBook.comSpaceX's Falcon 9 Rocket Set To Launch On Wednesday | TODAY TODAYMusk: Rocket costs must drop for 'self-sustaining city on Mars' BNNBloomberg.caView Full Coverage on Google News