This is an image of the Sun.

Taken at night. With neutrinos. Which travelled through Earth to reach a detector one thousand metres underground.
This image was "taken" over 503 days with the Super-Kamiokande neutrino observatory under Mt. Ikeno in Japan. Earth is essentially transparent to neutrinos, which strike water nuclei electrons and emit Cherenkov radiation, which is then detected with photomultiplier tubes.
Of note, this isn't the whole Sun—it's the solar core, which is where fusion takes place and neutrinos are produced. It can take more than 100,000 years for a photon to escape from the Sun's interior, but neutrinos punch their motherfucking way out of the core in three seconds.
You can follow @ThePlanetaryGuy.
Tip: mention @twtextapp on a Twitter thread with the keyword “unroll” to get a link to it.

Latest Threads Unrolled:

By continuing to use the site, you are consenting to the use of cookies as explained in our Cookie Policy to improve your experience.