Our Sun is one of many stars in our galaxy and our galaxy, the Milky Way, is one of many galaxies in the Universe. It is not yet possible for humans to travel beyond our Solar System, but by using telescopes scientists are able to take pictures of galaxies trillions and trillions of kilometers away.
Looking into deep space
Using space telescopes, scientists have seen stars being born and dying, and observed very distant galaxies. They have been able to work out that the Universe is nearly 14 billion years old.
Hubble Telescope
Orbiting above the Earth is the Hubble Space Telescope. The size of a large school bus, it faces out towards space and takes pictures of distant stars and galaxies.
Exoplanets
Our Sun is not the only star that has planets orbiting around it. Lots of other stars have planets, too, and scientists call these “exoplanets”.
Kepler-22b
This Earth-like planet was found orbiting around a star nearly 600 light years away from Earth. A light year is the distance light can travel in a year.
Picture Credit : Google
