A spacesuit on its own weighs 280 pounds! It takes astronauts 45 minutes to put on a spacesuit. If you step on the Moon, those footprints will be there more or less indefinitely. The moon has none of the erosion that wind, water, and volcanic activity creates on Earth, so any marks left on the surface of the Moon are there for good. Unless, of course, a meteorite shower changes the entire surface of the spacerock—but otherwise, your space legacy is protected.
One million Earths can fit inside the Sun. Ancient astronomers once believed the Earth was at the centre of the Universe but now we know that the Sun is at the centre of our Solar System and our planets orbit the Sun. The Sun makes up 99.8% of the entire mass of the whole Solar System. One million Earths would be needed to be the same size as the Sun.
There are more stars in space than there are grains of sand on every beach in the world. Stars seem to twinkle in the night sky due to the light being disrupted as it passes though the Earth’s atmosphere. There are approximately 200 billion stars in the Milky Way.