Planets
Worlds come in radically different forms. Some are rocky, some are covered in enormous atmospheres, and some may hide oceans beneath ice.
A silent ocean of stars, worlds, enormous galaxies and phenomena that challenge our understanding of reality. This is a tiny glimpse beyond our planet.
Space isn't simply an empty place between planets. It is filled with radiation, magnetic fields, enormous clouds of gas, exploding stars and objects whose gravity can bend the fabric of spacetime itself.
Worlds come in radically different forms. Some are rocky, some are covered in enormous atmospheres, and some may hide oceans beneath ice.
Stars are gigantic nuclear reactors. They create many of the elements that eventually become planets and everything living on them.
When enough mass becomes concentrated in one region, gravity can become so intense that even light cannot escape beyond the event horizon.
Earth orbits one star. That star belongs to the Milky Way, a galaxy containing hundreds of billions of stars. The Milky Way itself is only one galaxy among countless others in the observable universe.
Our small blue world is currently the only place known to contain life.
A spiral galaxy approximately 100,000 light-years across, containing our Solar System.
We have explored only a tiny fraction of the cosmos. Many of its biggest questions remain unanswered.
βThe universe is under no obligation to make sense to you.β β Neil deGrasse Tyson