https://astrogalaximum.com weekly 1.0 https://astrogalaximum.com/watch/solar-system-scale 2026-10-16 monthly 0.9 https://i.ytimg.com/vi/t2lvGvEPYYM/maxresdefault.jpg How big is the solar system, really? If the Sun were a ball one metre wide, Earth would be a pea 108 metres away. Take a true-scale walk from our star to the edge of its reach. https://www.youtube-nocookie.com/embed/t2lvGvEPYYM?rel=0&playsinline=1 243 2026-10-16T19:19:23+00:00 yes https://astrogalaximum.com/watch/earth-is-a-pea 2026-10-16 monthly 0.7 https://i.ytimg.com/vi/wVZ3K0z-qyQ/oar2.jpg If the Sun were a 1 metre ball, Earth would be a pea. Shrink the Sun to a ball one metre wide. Earth becomes a pea, a football pitch away. Neptune? More than three kilometres out. https://www.youtube-nocookie.com/embed/wVZ3K0z-qyQ?rel=0&playsinline=1 32 2026-10-16T20:42:57+00:00 yes https://astrogalaximum.com/watch/voyager 2026-10-16 monthly 0.7 https://i.ytimg.com/vi/VwqEaj2u3lU/oar2.jpg Its signal now takes a whole day to reach us. Voyager 1 has been flying since 1977. Its radio signal now needs about a day to get home. In 2012 it left the Sun’s wind and entered interstellar space. https://www.youtube-nocookie.com/embed/VwqEaj2u3lU?rel=0&playsinline=1 35 2026-10-16T20:45:21+00:00 yes https://astrogalaximum.com/watch/sunlight 2026-10-16 monthly 0.7 https://i.ytimg.com/vi/XbPmBCjUpm8/oar2.jpg You have never seen the Sun as it is right now. Sunlight takes about 8 minutes to reach you, so the Sun you see is 8 minutes old. Jupiter sees it 43 minutes late, Neptune more than 4 hours late. https://www.youtube-nocookie.com/embed/XbPmBCjUpm8?rel=0&playsinline=1 34 2026-10-16T20:41:12+00:00 yes https://astrogalaximum.com/watch/jupiter 2026-10-16 monthly 0.7 https://i.ytimg.com/vi/Ptx--HM9WY4/oar2.jpg One planet outweighs all the others. Twice over. Jupiter is about 2.5 times heavier than all the other planets combined, and 11 Earths would fit across it. Yet the Sun still holds 99.8% of the solar system’s mass. https://www.youtube-nocookie.com/embed/Ptx--HM9WY4?rel=0&playsinline=1 32 2026-10-16T20:40:05+00:00 yes https://astrogalaximum.com/watch/saturn 2026-10-16 monthly 0.7 https://i.ytimg.com/vi/K3f2c8iI6OI/oar2.jpg Is Saturn really less dense than water? Saturn is about 9 times wider than Earth, yet on average it is less dense than water: 687 kg per m³ against water’s 1,000. It is the only planet like that. https://www.youtube-nocookie.com/embed/K3f2c8iI6OI?rel=0&playsinline=1 35 2026-10-16T20:44:30+00:00 yes https://astrogalaximum.com/watch/edge-of-the-solar-system 2026-10-16 monthly 0.7 https://i.ytimg.com/vi/n6rLUI35mMU/oar2.jpg Where does the solar system actually end? Past Neptune: the Kuiper Belt. Then the edge of the Sun’s wind. Then a shell of ice nobody has ever seen, which may reach 100,000 times farther than Earth is from the Sun. https://www.youtube-nocookie.com/embed/n6rLUI35mMU?rel=0&playsinline=1 37 2026-10-16T20:39:15+00:00 yes