
14/08/2025
Mercury, the Sun’s closest planet, has no atmosphere—meaning no wind, no weather, and no protection from space. Its extreme conditions stem from three key factors:
1. Solar Blast – Intense solar winds strip away gases, leaving Mercury exposed.
2. Weak Gravity – With only 38% of Earth’s gravity, it can’t retain an atmosphere.
3. Extremes Temperature – Days reach 430°C (800°F), while nights plunge to -180°C (-290°F), preventing any stable gaseous layer.
Without an atmosphere, Mercury’s surface remains eerily still. Craters stay untouched for billions of years, and the sky is perpetually black. This makes it a silent, barren world, offering scientists clues about planetary formation and the fragility of atmospheres.