Click the green flag to start the project, then hover your mouse over any of the planets. A little information box will pop up, showing you their names, size compared to Earth, how long a day is on them, how long a year is on them and what they're made of.
There isn't anything for the sun. Music will come for the project. Thanks so much to @-OceanBIue- for the code for 'the solar system' words.
