1) The coldest known temperature in the universe was achieved in a laboratory in 2019, reaching a fraction of a degree above absolute zero (-273.15 degrees Celsius).

2) The hamburger, consisting of a ground beef patty served between two buns, is an iconic American food. It has gained global popularity and countless variations, from classic cheeseburgers to gourmet creations with unique toppings and sauces. The invention of the hamburger is often attributed to Louis Lassen, a Danish immigrant in Connecticut, who served the first hamburger in the early 20th century. Today, hamburgers are a staple in fast-food chains, casual diners, and backyard barbecues around the world.

3) The Andes, stretching along the western coast of South America, is the longest mountain range in the world, spanning over 4,300 miles (7,000 kilometers).

4) Michael Jackson's album "Thriller" is the best-selling album of all time, with estimated sales of over 66 million copies worldwide.