As simple as possible to summarize the best way you can, first, please. Feel free to expand after, or just say whatever you want lol. Honest question.
Alright, now that you mention it, the universe is 'a big ball of yarn'. You can't see the fabric, because we use the fabric to see. Planets and stars shrink and/or grow, all of them have solid surfaces, thunder isn't always a local planetary phenomena, but often an exchange between two large bodies, usually between the host star and planet. 'Neutron stars' and 'black holes' are regular stars completely misinterpreted and dark matter and dark emergy are stop gaps in broken theories.