Discover what Earth's atmosphere is made of, including its gases (78% nitrogen, 21% oxygen), layers like troposphere and stratosphere, comparisons to Venus and Mars, and human impacts on climate and health.
Explore the fundamental differences between inner planets (terrestrial) and outer planets (gas giants), including composition, features, and NASA missions. Learn why this solar system division matters for astronomy and exoplanet research.
Discover how long Mercury takes to orbit the Sun—approximately 88 Earth days—and explore its elliptical orbit, extreme speed variations, and why a single day lasts two years. Learn the science behind Mercury's chaotic motion and why it matters for Einstein's relativity and space missions.
Discover why Earth is round through gravity, hydrostatic equilibrium, and planetary science. Debunk myths, explore Earth's oblate shape, rotation effects, and real-world impacts like seasons and navigation.
Discover why Uranus holds the solar system's coldest planet title with record lows of -224°C. Detailed comparison with Neptune, internal heat science, atmospheric data, and future mission insights.