About 13.8 billion years ago the #universe expanded faster than the speed of #light for a fraction of a second in a period called #cosmic inflation.
#astronomy #astronomytalk #astronomynerd #astronomyoftheday #bigbangtheory #astronomyatmastodon

💢 You can't stand on Uranus

If we ever manage to travel to the gas planets, you might be in for a bit of a shock when you step off the spaceship. That’s because Jupiter, Saturn, Uranus and Neptune don’t have solid surfaces - they have a rocky core, but are mainly big balls of hydrogen and helium.

#astronomy #astronomyoftheday #astronomyfact #astronomytalk #astronomynerd #astronomysociety #astronomyeducation #asttronomyatmastodon

Saturn's rings are 90% water

Saturn is home to the Solar System’s most epic ice rink. Being so far from the Sun, the water in its rings is frozen into ice. It is one of four planets that have rings around them - the other gas planets do too. However, the rest were undiscovered until the 1970s when probes went to explore them. Saturn’s were the first rings seen through telescopes from Earth.

#astronomy #astronomyoftheday #astronomyfact #astronomynerd #astronomyeducation #mastadonastronomy