22912 But planet-mass black holes are impossible to exist, right? I was joking about what happens to Vulcan in one of the Star Trek movies. ;)   I n reality planet-mass black holes are absolutely possible, but probably not found in planet-like orbits.  Let's get the first (very artificial and proba...

I was about to say it's nice to know Vulcan has not been turned into a black hole yet, but then realized it was detected by the radial velocity method, which cannot distinguish a planet-mass black hole from a regular planet.

Perfect reflection.

22862 Can you tell me what physical simulations have been implemented in the space engine? I think Space Engine involves more emulation than simulation.  For example it never simulates the geological processes behind terrain building or erosion.  It instead emulates surface features by procedural a...

Since the light reflected by Mars comes from the Sun, so instead of seeing Mars 5 minutes in the past, we would not be seeing it in 18 minutes? ... OK. I had supposed that because if the sun went out and then re-started it would take 18 minutes for the light to reach Mars and then reflect on Earth....

Changing the plane of the orbits to get a Hubble-ISS rendezvous is the most infeasible part.  Changing orbital altitude isn't too bad, but plane change maneuvers in low orbit are...  insanely  delta-v expensive.  You can get a sense of this in KSP or Orbiter.  And then factoring in what midtskogen n...

Yeah, I was thinking of alliteration (spirit of summer stands), and also used a lot of s's and soft c's, and generally getting sounds to repeat or flow together, but I didn't always hit it on the first syllable.  (Like the s in rising.)  Surging is a good one.

Meteorological autumn has arrived, and as I lay on the edge of an island and watched the weather roll in, I wrote a poem.  (Yes, I love poetry).   I didn't worry too much about fitting formal poetic devices, but I think it worked out nice. I lie on winter's precipice Surrounded by never ending w...

Lol.    At the risk of taking it too seriously, 24 - (a+b+c+d-e) makes sense, but why minus f/g?  Also to be consistent each term in the equations should have units of hours, but f/g seems like it would be dimensionless.

Aborygen, wow, all of those are excellent and very unique.

Beautiful, midtskogen!

22719 Hell yeah, 10th post! I am very tempted to remove all 10 of them and give 3 days off for spamming the forum with unnecessary multi-posts and answering old posts that did not need to be or already were answered.  In fact, I believe I will.   That is not an appropriate way to get to 10 posts, n...

The warp bubble is quite visible to those outside of it.  Light rays are highly deflected by it. :) These are two visualizations made by the SXS Collaboration.  (This is the same group that makes the visualizations for the gravitational waves from events detected by LIGO, so they are credible). ugvs...

Scott Manley had a pretty good video blog about it, addressing and correcting a lot of the misconceptions that arose in the news reports.