Hacker News
new
|
past
|
comments
|
ask
|
show
|
jobs
|
submit
login
hashfunktion
on April 11, 2019
|
parent
|
context
|
favorite
| on:
Unveiling the first-ever image of a black hole [vi...
Pardon my naïveté, I never took advance physics, but if light can't escape from a blackhole, then how can we "take a picture" of one?
ValleyOfTheMtns
on April 11, 2019
|
next
[–]
It's a photo of the absence of light (in the middle) and light/particles swirling around the black hole that haven't passed the event horizon (yet).
ceejayoz
on April 11, 2019
|
prev
[–]
Same way we can take a picture of a shadow - by taking a picture of the stuff surrounding it. This black hole is surrounded by a bright accretion disk.
Guidelines
|
FAQ
|
Lists
|
API
|
Security
|
Legal
|
Apply to YC
|
Contact
Search: