Fascinating discoveries from our universe
The Sun accounts for 99.86% of the mass in our solar system. All the planets, moons, asteroids, and comets combined make up just 0.14%.
A teaspoon of neutron star material would weigh about 6 billion tons on Earth. These remnants of massive stars are incredibly dense.
A day on Venus is longer than its year. Venus takes 243 Earth days to rotate once, but only 225 Earth days to orbit the Sun.
The observable universe contains an estimated 2 trillion galaxies, each with hundreds of billions of stars.
Light travels at 299,792 kilometers per second. It takes about 8 minutes and 20 seconds for sunlight to reach Earth.