A planetarium show in Orlando is a calm, seated experience under a big dome where you watch stars, planets, and deep-space visuals while a narrator explains what you're seeing. Expect 30-45 minutes of programming that mixes science, eye-candy footage from telescopes, and sometimes a bit of music. It's air-conditioned, dark, and quiet—very different from the theme parks. Most shows are educational without being dry; you'll learn a few real facts about the solar system or current night sky. Crowds are small compared to rides, and it's a good reset if you've been running around in the Florida heat all day.
Best time is during the off-season (late August to mid-December or January to March) when lines are shorter and tickets easier to get. Evening shows tend to feel more special. Expect to pay around $15-30 per adult depending on the show type and whether you add a laser or special-effects program. Kids and seniors usually get a modest discount.
Tip: pick the current night-sky or solar system overview show—it's the most genuinely useful and updates with real astronomy. Skip the purely laser-light music shows unless you specifically want a planetarium-rave vibe; they feel dated and less educational. Arrive 15 minutes early for good seats near the center.