10 Dangerous Planet in the Universe

Then there is the rain. The silicate-rich clouds of HD 189733b cause rain of molten glass to fall from the skies. That rain does not fall straight down because of the superfast winds we just talked about. Instead, this strange precipitation falls sideways.

HD 189733b is so close to its star that it is ridiculously hot.

For better perspective, it is so near to its sun that HD 189733b completes a revolution around its star in just 2.2 Earth days. Interestingly, a day on this exoplanet is also 2.2 Earth days long.