Venus Drones, Sun-Powered Ships and More: NASA Announces Funding for Sci-Fi Like Projects

For context, NASA reported the marginal costs of the final three Apollo missions (including LMs) as ~$3.7 billion each, adjusted for inflation.

Ultra-Windy Venus Powered By A Searing Hot Surface, Study Says

First Pictures: Color Views of the Surface of Venus by Venera 13 – March 1, 1982