What are some Science topics you would be interested in seeing discussed as part of a planetarium show?

If a moon can have a moon, what would make it possible!

How planets form - accretion or from nebulous discs or both.

The difference between rocky and icy planets.

Hydrostatic equilibrium.

Could Jupiter and Saturn have been potential stars if they didn't orbit the sun?

Did the planets form elsewhere and end up drifting towards the sun then orbiting it?

I'm really fascinated by stellar evolution.

The audience would have to be people with a scientific background, at least capable of understanding nuclear fusion.

A planetarium should have shows for all levels of understanding of science and astronomy, including children and adult novices

Actually, I have to admit than one show that I really found memorable was a laser light show, to the music of U2.

"Is the Earth round or flat? "

Cosmic rays

Neutron stars

The Artis Planetarium in Amsterdam, Netherlands used to have a cool show on the big bang.

Planetariums in major cities that I worked at producing and running shows did the Astronomy thing--both for school kids and the general public. We concentrated on Apollo to the Moon, probes to planets, star types and constellations, lots of basic Astronomy terms and ideas, history of the Greek, Babylonian, the Arabs and Chinese and Indian scholars, early temple builders in Europe and the Americas. We had a good reputation at both those locations.

Unfortunately, that type of operation does not pay the bills. Early on when staff salaries, building maintenance, show production costs and advertising fees meant the museum would go broke, the movie productions and laser shows came in. Very popular, but not really much to do with Astronomy. Still that way in both the places where I was on staff. Only the planetariums directly attached to schools, colleges and major museums with lots of funding seem to maintain the traditional science subjects to a great extent.

It's unfortunate that so many planetariums resort to laser shows and films instead of just focusing on the stars as seen with the naked eye. The most enjoyable planetarium shows are those that focus on the stars.

I'd like to see a planetarium show that demonstrates the position of the Earth in the Universe, why we see what we do, and where various celestial objects appear in the sky from Earth's perspective- the Sagittarius Bulge, the Perseus and Orion arms of the Milky Way, the Globular Clusters, and beyond the Milky Way to the nearby galaxies, the Virgo Supercluster and others.

Another planetarium show I'd love to see is a history of Constellations and/or Star Names, tracing their history from Babylonian/Sumerian constellations, to Egyptian, Greek and then Roman. It is theorized that the Egyptian Sphinx was originally a Lion's Head, based on Leo, and was later modified to a Sphinx. The constellation Libra, for example, is a Roman invention which took the claws of the Scorpion and made it the Scales.

Another idea is an explanation of the Big Bang, a timeline of the Universe starting with the Big Bang, nucleosynthesis, the first stars, the formation of galaxies and galaxy clusters, Quasars, etc.

Two planetariums I have recently visited are located at the Reading Museum in Reading, Pa, and the Newark Planetarium at the Newark Museum in Newark, NJ. Both were with girlfriends, one of whom later told me she slept through most of the program!

When are we going to Mars ??

How the moon came to be...

What will happen when Andromeda and the Milky Way merge.

I'd be interested in New Horizons latest encounter also.