Don_Dickle@lemmy.world to Ask Science@lemmy.worldEnglish · 4 days agoHow do we know what black holes do and do not do? I have never seen a video of one being active. How do we know it tears stuff apart?message-squaremessage-square15linkfedilinkarrow-up147arrow-down14
arrow-up143arrow-down1message-squareHow do we know what black holes do and do not do? I have never seen a video of one being active. How do we know it tears stuff apart?Don_Dickle@lemmy.world to Ask Science@lemmy.worldEnglish · 4 days agomessage-square15linkfedilink
minus-squarecloudless@piefed.sociallinkfedilinkEnglisharrow-up13·4 days agoYou can find videos of an active black hole: https://youtu.be/TF8THY5spmo You cannot “see” the black hole directly, but you can see the stars orbiting the black hole and the effect of gravitational lensing. In a similar way when you see your own hands, are aren’t really seeing your hands, but the photons bouncing off your hands into your retina.
minus-square200ok@lemmy.worldlinkfedilinkEnglisharrow-up2·4 days agoSuch a cool video! Apparently it’s a time lapse taken over 20 years. It takes our solar system 225 MILLION years to orbit the black hole in the centre of the milky way galaxy.
You can find videos of an active black hole:
https://youtu.be/TF8THY5spmo
You cannot “see” the black hole directly, but you can see the stars orbiting the black hole and the effect of gravitational lensing.
In a similar way when you see your own hands, are aren’t really seeing your hands, but the photons bouncing off your hands into your retina.
Such a cool video! Apparently it’s a time lapse taken over 20 years.
It takes our solar system 225 MILLION years to orbit the black hole in the centre of the milky way galaxy.