- Misconception 1: Many of the stars we see in the night sky could have already died. Reality: The stars we see are generally the ones closest to Earth and their lifespan typically ranges from 50 million to 20 billion years.
- Misconception 2: Our planet is closest to the Sun in summer and farthest away in Winter. Reality: The Earth is closest to the Sun in January and farthest away in July. The seasons are caused by Earth's axial tilt.
- Misconception 3: The universe has a clear center, Earth. Reality: The observable universe has Earth at its center, but the entire universe likely extends to infinity and has no actual center.
- Misconception 4: Black holes are the most dangerous objects in the universe. Reality: Black holes are relatively tiny and it's extremely difficult to fall into one. They could even be useful for long-distance space travel.
- Misconception 5: There is no sound in space. Reality: While the vast majority of space is too empty for sound to propagate, there are areas, like the Perseus Galaxy cluster, where sound can travel.
via The Biggest Misconceptions About The Universe