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62 Facts About The Universe And Space That Sound Completely Impossible But Are Actually True
Bored Panda • • science
Key Points:
- The universe is about 13.8 billion years old and continuously expanding, with nearly 95% still unknown, making it a vast and mysterious frontier for scientific discovery.
- Unique cosmic coincidences include the Sun and Moon appearing the same size in the sky due to their relative sizes and distances, enabling phenomena like total solar eclipses that are rare in the universe.
- The observable universe contains an estimated 2 trillion galaxies and roughly 800 sextillion stars, highlighting the immense scale and complexity of the cosmos.
- Significant discoveries include Jupiter’s moon Europa containing more water than all Earth's oceans combined, and the fact that elements essential to life on Earth were formed inside collapsing stars.
- Space is not completely silent; electromagnetic vibrations and pressure waves within galaxies and nebulae can produce sound, and black holes emit low-pitched warbling noises, challenging the notion that space is entirely quiet.
