Like Earth, they orbit a star, but that's where the similarities end. Astronomers are constantly finding new planets orbiting stars other than our sun - so-called exoplanets. Some resemble Earth, but the vast majority offer conditions that are absolutely not suitable for humans. Dangerous #Space #SpaceX #Exoplanets #ReGiuSonYoutube #Galaxy #DeadlyPlanets https://youtu.be/aB2eXvBMoHs