This is a possible concise summary:
The text is about five mysterious disappearances of people who visited famous places. The first case is about Georg Penca, who vanished while hiking in Yosemite National Park in 2001. The second case is about Carla Valpeoz, who disappeared after visiting Machu Picchu in Peru in 2018. The third case is about Tinashe Machona, who went missing while skiing near Victoria Falls in 2012. The fourth case is about Gavin Smith, who was last seen near the Golden Gate Bridge in 2018. The fifth case is about Prabhdeep Srawn, who never returned from a trail in the Australian Alps in 2013. The text also includes a reaction of a YouTuber who claims to have seen a missing girl in the mountains of California.
Here are the key facts extracted from the text:
1. Josh Penca Juniors, 30 years old, went missing on June 2001 after exploring the Upper Yosemite Files trail with his church group.
2. Korean nuclear fusion reactor achieved 100 million°C for 30 seconds in September 2022 and achieved a net energy gain.
3. Sun's core has a temperature of 15 million degrees kelvins and a density of 150 g/cm3.
4. Carla Valpeoz, 35 years old and visually impaired, went missing in December 2018 after visiting Machu Picchu in Peru with a group of tourists.
5. Tinas Juicy Tambo, 25 years old, went missing in March 2012 after climbing a different route from his sister at Victoria Falls.
6. Gavin Cus and Octaviano, 22 years old, went missing in November 2018 after parking his car near the Golden Gate bridge and walking near the tunnel.
7. Joey 420, a YouTuber, encountered a mysterious woman who resembled Karli Lingus, a missing girl, while riding his motorcycle down a mountain road in California in July 2019.
8. Carl El Ivan House, a German millionaire and skier, went missing in April 2018 after skiing alone on a glacier-covered peak in the Swiss Alps.
9. Flor Brouwer Second, 52 years old, went missing in June 2016 after separating from his friend and his friend's daughter at the Grand Canyon.
10. Pratdip Sound, 25 years old and nicknamed Prof, went missing in May 2013 after renting a van and hiking on a trail on Main Train in the Australian Alps.