sirto

I would like to add to the discussion my mod of Tim's work (with the author's permission) for astrophotography: https://paolo.sirtoli.it/astrophoto.html

Every photographer knows very well the exposure triangle: shutter speed, aperture and ISO, but in astronomy usually only aperture and focal ratio are considered. So I added a third dimension to illustrate the basic triad of astrophotography: telescope aperture, focal ratio and image resolution.

They possibly already found a neutron star inside the remains: https://science.nasa.gov/missions/webb/webb-finds-evidence-f...

40 days are an appetizer with respect to the records accomplished by Maurizio Montalbini: https://en.m.wikipedia.org/wiki/Maurizio_Montalbini Montalbini spent a total of two years and eight months underground since he started his experiments in the 1980s