[SpaceX].Friend wants to land on Mars in 2024-2026.[Elon Musk]Face Bookhttps://www.facebook.com/yasuhiro.odawara/twitterhttps://twitter.com/happy_maleinstagr...
[Nobuo Shioya] The sun does not emit light or heat. It just emits radiation. [Cold, dark celestial body]facebookhttps://www.facebook.com/yasuhiro.odawara/twi...