Uploaded May 2020 | Updated September 2026, 2 weeks ago
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Black holes should be common in our Milky Way galaxy, but because of their dark appearance only dozens have been discovered to date. By nature, black holes are impossible to see directly. But astronomers can sense their presence by the way they interact with their environments, letting us glimpse of these objects whose gravity is so strong that nothing can escape, not even light. In the past century, not only have astronomers shown that black holes do exist, but they’ve found dozens in our own galaxy.
However, based on the number of stars in our galaxy, there should actually be tens of millions out there. Well the trouble is that, unless they’re near another star, they can be hard to detect. In these binary systems, a black hole can steal material from its companion star, generating distinct X-ray light in the process. A 2016 paper reported 77 nearby candidate black holes from such X-ray observations. Out of which, we’ve picked only 9 of the closest binary star systems to Earth, that contains at least one stellar black hole.
This video is in continuation with the previous video, revealing “Are we safe from these nearest black holes to earth” and if you haven’t watched that video then you must go checkout. You’ll also find it in the i-button. Now, let’s begin this video, we’ll continue the countdown from exactly where we had left.
So, on number 4 we have:-
Timescales:-
00:02 - black hole
00:20 - cygnus x1
00:28 - cygnus
00:36 - binary star system
00:50 - event horizon
01:23 - stephen hawking
01:45 - xte J1118+480
02:02 - ursa major
02:16 - supernova
02:23 - grs 1124-683
02:38 - ursa minor
02:57 - A0620-00
03:05 - v616 monocerotis
03:15 - stellar black hole
03:25 - brightest star
Tags :-
#scienceofspace #blackhole #blackholes
SUBSCRIBE & Press the BELL ICON to get the latest updates
about all the upcoming videos!!
Black holes should be common in our Milky Way galaxy, but because of their dark appearance only dozens have been discovered to date. By nature, black holes are impossible to see directly. But astronomers can sense their presence by the way they interact with their environments, letting us glimpse of these objects whose gravity is so strong that nothing can escape, not even light. In the past century, not only have astronomers shown that black holes do exist, but they’ve found dozens in our own galaxy.
However, based on the number of stars in our galaxy, there should actually be tens of millions out there. Well the trouble is that, unless they’re near another star, they can be hard to detect. In these binary systems, a black hole can steal material from its companion star, generating distinct X-ray light in the process. A 2016 paper reported 77 nearby candidate black holes from such X-ray observations. Out of which, we’ve picked only 9 of the closest binary star systems to Earth, that contains at least one stellar black hole.
This video is in continuation with the previous video, revealing “Are we safe from these nearest black holes to earth” and if you haven’t watched that video then you must go checkout. You’ll also find it in the i-button. Now, let’s begin this video, we’ll continue the countdown from exactly where we had left.
So, on number 4 we have:-
Timescales:-
00:02 - black hole
00:20 - cygnus x1
00:28 - cygnus
00:36 - binary star system
00:50 - event horizon
01:23 - stephen hawking
01:45 - xte J1118+480
02:02 - ursa major
02:16 - supernova
02:23 - grs 1124-683
02:38 - ursa minor
02:57 - A0620-00
03:05 - v616 monocerotis
03:15 - stellar black hole
03:25 - brightest star
Tags :-
#scienceofspace #blackhole #blackholes
