Space swap fundamental characters

This week let’s explore a strange place where time and space swap fundamental characters, inside a black hole. Start with this article https://www.space.com/what-happens-black-hole-center Links to an external site. and then research either a gravastar or a Planck star. Your original post should contain at least the most interesting things you found in your research as well as one original opinion you have regarding those things and one question it raised for you.

You’re welcome to use any reputable scientific news source (major newspapers, Scientific American, Physics Today, National Geographic, etc.) or sites that aggregate astronomy news. Here are some good starting points:

• Spaceref.com: Good Astronomy news site
• Science Daily: Astronomy (and other science) news
• Spaceflight Now: Cool news on space flights

For this discussion, it is especially important that you reference your source, but just like before, a URL is an acceptable reference for these discussions.