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THE VIDEO SHELF · solar gravitational lens

The Solar Gravitational Lens will Map Exoplanets. Seriously.

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.

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Why HN readers 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 summary from the source dataset, not an endorsement by Hacker News or the video creator.

Video & recommendation details

Creator / channel
Launch Pad Astronomy
Topic
solar gravitational lens
Format
explainer
Level
general
HN recommenders in dataset
10
HN mentions in dataset
20
Recommendation years in dataset
2020–2025

These counts and years describe the included Hacker News records; they are not YouTube views or the video’s publication date.

From the original HN conversations

Excerpts from the recorded comments. Follow each source for the full comment and surrounding discussion.

  • You CAN use for more than 1 target, you just need to reposition the telescope a bit. See [1], is a great great video on the subject. I can't recommend enough [1]: [VIDEO]

    augusto-moura on Hacker News · 2020-09
    In Why is there a normal galaxy sitting at the edge of the Universe?

  • The whole concept is that we should launch a fleet of them every few months. Very lightweight semi-autonomous smart lightsails with some optics. The first fleet helps targeting the second, and all those who come after them. [VIDEO] (already linked by a sibling comment, but …

    pas on Hacker News · 2020-09
    In Why is there a normal galaxy sitting at the edge of the Universe?

  • This is the space project that most excites me and the one I most hope we solve in my lifetime. Much more interesting than Mars (not that you can't do both). This video on gravitational lensing blew my mind [VIDEO] What do you think the …

    dmix on Hacker News · 2022-12
    In Two temperate Earth-mass planets orbiting the nearby star GJ1002

Summaries, classifications and recommendation records are from the HackerTube source dataset. Read about this library and its limitations.

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