Venus rotates so slowly that a single day on the planet lasts longer than its entire year. A sidereal day on Venus takes 243 Earth days,…

Scientists have calculated that diamonds literally rain down through the deep atmospheres of Jupiter and Saturn. Lightning storms in these…

Neutron stars are the densest objects in the universe besides black holes. A single teaspoon of neutron star material would weigh…

Neutron stars have such extreme density that a teaspoon of material would weigh approximately 5 billion tons on Earth. They are the…