IrritableOcelot comments on Space is beautiful

Space is beautiful (lemmy.dbzer0.com)

submitted 1 year ago by Stamets@lemmy.dbzer0.com to c/science_memes@mander.xyz

57 comments fedilink hide all child comments

you are viewing a single comment's thread
view the rest of the comments

[–] IrritableOcelot@beehaw.org 5 points 1 year ago (3 children)

Only after 20 years. Light will take 10y to make it from earth to the mirror, and 10y to travel back.

permalink

fedilink

source

parent

hideshow 3 child comments

[–] Natanox@discuss.tchncs.de 17 points 1 year ago (1 child)

No, the light would be reflected as soon as the mirror is set up. If the mirror is set up 10 lightyears away it would take 10 years for you to see it and whatever it reflects. There already is light on the way to the position of the mirror before you set it up.

permalink

fedilink

source

parent

hideshow 1 child comment

[–] IrritableOcelot@beehaw.org 9 points 1 year ago

Oops, that's right!

permalink

fedilink

source

parent

[–] anothercatgirl@lemmy.blahaj.zone 2 points 1 year ago

it takes way more than 10 years to ship a mirror from Earth to some place 10 ly away from earth.

permalink

fedilink

source

parent