The Solar Gravitational Lens will Map Exoplanets. Seriously.

23:32 · explainer · evergreen

Summary from the export

Explains the proposed NASA JPL plan to use the Sun as a gravitational lens, sending solar sail craft to its focal region to image an exoplanet's surface. It covers the distances involved, how imaging with the Sun would work and the mission design.

Why Hacker News recommended it

HN strongly recommends it as the clearest, best-illustrated explanation of the solar gravitational lens idea, and links it whenever exoplanet imaging comes up.

This is a synthesis from the public export, not a quote from an individual user. HN counts are historical recommendation context, not YouTube views.

Astronomy & big ideas