Space Facts for Kids

If you weigh 100 pounds on Earth, you would weigh only about 38 pounds on Mars.

Large galaxies grow by eating smaller ones — the Milky Way is currently absorbing several dwarf galaxies.

The computers that sent Apollo 11 to the Moon were less powerful than a modern smartphone.

The Hercules-Corona Borealis Great Wall is the largest known structure in the universe, stretching 10 billion light-years.

Solar flares from the Sun can disrupt satellites, GPS, and even knock out power grids on Earth.

Saturn's moon Enceladus shoots giant geysers of ice and water vapor into space from its south pole.

Gamma-ray bursts are the most powerful explosions in the universe — they can release more energy in seconds than the Sun will in its entire lifetime.

Pluto has a giant heart-shaped feature on its surface called Tombaugh Regio, discovered by the New Horizons spacecraft.

If you brought a matchbox-sized piece of neutron star to Earth, it would weigh about 3 billion tons.

Neptune's largest moon Triton orbits backwards compared to the planet's rotation — it may be a captured dwarf planet.