天の川銀河は、CDと同じ薄さです。💿
A CD is 120 mm wide and 1.2 mm thick. A ratio of 100 to 1.
The Milky Way has the same ratio.
100,000 light-years across. 1,000 thick.
We live inside something that thin.
👇https://t.co/swVRBFYTJr
#MilkyWay#Galaxy#Space#Astronomy#Voyager
ブラックホールの写真は、穴を撮った写真ではない。🕳
In 2019 we photographed a black hole.
The black hole is not in that picture.
Point any camera at it, and nothing shows up.
So what did we actually see?
👇👇
https://t.co/ZXytRAGZhE
#BlackHole#EventHorizon#Space#Astronomy
By combining over 20 years of Hubble Space Telescope observations with new data from the James Webb Space Telescope, astronomers have finally detected a stellar-mass black hole within the massive Omega Centauri cluster. In the zoomed-in view, the black hole’s presence is revealed by a visible companion star orbiting the unseen object.
Omega Centauri is the Milky Way’s largest globular cluster, located approximately 17,000 light-years from Earth. It contains around 10 million stars, spans roughly 150 light-years in diameter, and is approximately 12 billion years old. Note the stunning resolution of these space telescopes.