Tag Archives: black holes

Can Event Horizons be Created at Lagrange Points in a Multiple Neutron Star System?

Question: I have been interested in astronomy since I was a child. My question arose while I was studying the effects of Lagrangian points between multiple bodies. Imagine a scenario of a binary (or multiple) neutron stars system. Provided the … Continue reading

Posted in Black Holes, Physics | Tagged , , | Leave a comment

How Long Does it Take the Sun to Orbit the Center of our Galaxy?

Question: How long does it take our sun to complete a full orbit around the super blackhole at the center of the Milky Way?  — Dustin Answer: We can calculate this value by noting that the Sun is about 8 … Continue reading

Posted in Galaxies, Physics, Sun | Tagged , , , | Leave a comment

Do Black Holes Create Dark Energy?

Question: Hi, my name is Kemp and I just finished watching a program from the Discovery Channel entitled “Understanding the Universe”. The program triggered an odd question, do blackholes create dark energy and/or dark matter relative to their size?  — … Continue reading

Posted in Black Holes, Cosmology | Tagged , , | Leave a comment

Black Holes and Gravitational Redshifting of Emission

Question: What do black holes look like on radio telescope images? Specifically how does a visible light image of a black hole compare to a radio telescope image of the same black hole? I’m curious whether gravitational time dilation and … Continue reading

Posted in Black Holes, Physics | Tagged , , | Leave a comment

How Do Black Holes Form?

Question: How do black holes form?  — Harsh Answer: I think that my colleagues at NASA have produced a very nice explanation of what black holes are and how they form.  In a nutshell, when a massive object has not … Continue reading

Tagged Leave a comment

The Density of Matter in a Black Hole

Question: A 10 solar mass object would have 10 solar masses enclosed in a radius of 30 km.   The density of a spherical object scales as M/R3.  Relative to the 10 solar mass black hole, how many times denser would … Continue reading

Tagged Leave a comment

In What Direction Does the Outflow from a Quasar Go?

Question: Thank you for answering! Is the supposed spinning the reason all the body’s caught in the pull stay in a synchronized belt around it? If so, where does a quasar emit? “North and south?” Or anywhere it pleases? I … Continue reading

Tagged , Leave a comment

Can a Neutron Star Become a Black Hole?

Question: Can you help with this new question could a man made neutron star be made to then collapse it into a black hole, but I am not sure if it is answerable.  A neutron generator can generate to 108 … Continue reading

Posted in Black Holes, Stars | Tagged , , | 2 Comments

Can Time Dilation Near a Black Hole Explain the Orbits of Stars Near the Black Hole?

Question: Regarding galaxy rotation.  Although the supermassive black hole at the center of a Galaxy probably isn’t strong enough to speed up the rotation of its more distant stars so as to make the velocity curve level, nevertheless the time-dilation … Continue reading

Posted in Black Holes, Physics | Tagged , , | Leave a comment

What Happens to a Black Hole That Radiates to “Nothing”?

Question: Just to clarify, Hawking’s radiations takes place simultaneously to the black hole growing? and, then becomes dominant once the black hole stops growing?  Further, having depleted with a final outburst/explosion leaving behind ” nothing ” – to what level … Continue reading

Tagged Leave a comment