Hikari Sasaki: If the observable universe were scaled to fit within the sphere defined by Neptune's orbit, the Earth would have a diameter of ~0.13 microns, orbiting a Sun with a diameter of ~0.014 millimeters at a distance of 1.5 millimeters. The solar system out to Neptune would fit in a gumball. #space

If the observable universe were scaled to fit within the sphere defined by Neptune's orbit, the Earth would have a diameter of ~0.13 microns, orbiting a Sun with a diameter of ~0.014 millimeters at a distance of 1.5 millimeters. The solar system out to Neptune would fit in a gumball. #space