1) A newborn kangaroo is about 1 inch (2.5 centimeters) long and weighs less than a gram.

2) The universe is estimated to be around 13.8 billion years old.

3) The deepest part of the ocean is the Mariana Trench, reaching a depth of about 36,070 feet (10,994 meters).

4) Ryan Reynolds is a Canadian actor, producer, and entrepreneur known for his roles in films such as "Deadpool," "The Proposal," and "Detective Pikachu." He has gained recognition for his comedic timing and charismatic performances on-screen.