Dear, Dan Dixon. Comets, Evaporating planets, Oblate planets, Oblate stars, Aurorae and Musics has already added in SpaceEngine.
Comets, Evaporating planets, Oblate planets, Oblate stars, Aurorae and Musics will be added in Universe Sandbox 3 ?

Screenshots from SpaceEngine (This is not fake):

What do you mean by evaporating planets?

Space Engine is an excellent piece of work, and while it depicts Space and everything in it beautifully,
there is a fundamental difference between Space Engine and Universe Sandbox.

Our main focus is the accurate simulation of reality.

While striving for this, we spend many many CPU cycles on things that Space Engine does not
care about. Amazing visuals are also important but will remain a secondary priority in our efforts.

In the long run, we of course will try to give you the most stunning visuals possible,
but we will never sacrifice the simulation aspect of Universe Sandbox on the altar of flashy graphics.

That said, comets are in development and music as well as sound effects are on our roadmap  

in universe sandbox 2 you can set the collision mode to bounce, then set the dust produced from collisions to high, and then explode an object at very low or zero velocity so the parts stay together. gravity makes them bump against each other and make a dust generator. if you get it moving maybe the dust will somehow navigate from the dust-generating-pseudocomet although personally i haven't had much luck when i tried this

@Astronomical
Musically... I'm thinking about some blend of orchestral and ambient.

@mudkipz
That's an interesting way, if not stable or ideal, way to create a particle spawned. Cool technique.

@vosk_01
Are you going to acknowledge Chris's reply? Instead you just posted about another Space Engine feature (which is a cool feature, to be fair). Does it make sense to you (or everyone) how Universe Sandbox and Space Engine are different?

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@vosk_01
Are you going to acknowledge Chris's reply? Instead you just posted about another Space Engine feature (which is a cool feature, to be fair). Does it make sense to you (or everyone) how Universe Sandbox and Space Engine are different?

Dan Dixon No, I'm ask you. Comets, Evaporating Planets, Oblate planets, Oblate stars, Aurorae and Musics will be added in Universe Sandbox 3 ?

Thats kinda rude, Chris is DEVELOPING US3 so he is as well versed in whats going on as Dan is, I know your native language is not English so I can see why it looks rude to me but probably not to you.  You should answer Chris on this, he doesnt post often but when he does its worth responding back

(Quote removed by Dan)

Or he is a 9 year old noob who doesn't know better

Anyways, I believe Dan has mentioned aurorae already and there is going to be animated stuff, so I can see that being in Ubox. Maybe not at release though, or someone could make them through modding.

I wouldn't mind there not being comets in the initial release as it's something that could be worked on at a later time.