chipsfunfun.neocities.org
Some places have summer camps, for example: https://cty.jhu.edu/programs/on-campus/courses/astrophysics-astr But there are a lot of good resources online, for example: https://www.youtube.com/playlist?list=PLm33tX0lmjCI-Q5DEajaD8sMTfA1IU-s6
Another cool link: https://www.atnf.csiro.au/outreach/education/senior/astrophysics/index.html
Some places have summer camps, for example: https://cty.jhu.edu/programs/on-campus/courses/astrophysics-astr But there are a lot of good resources online, for example: https://www.youtube.com/playlist?list=PLm33tX0lmjCI-Q5DEajaD8sMTfA1IU-s6
Another cool link: https://www.atnf.csiro.au/outreach/education/senior/astrophysics/index.html