The chemical element that is a noble gas and has the symbol He is helium. Helium is colorless, odorless, and tasteless, making it one of the most abundant elements in the universe. It is commonly found in natural gas deposits and is produced through the nuclear fusion processes in stars. Helium is well-known for its low density, which allows it to be used in balloons and airships, making them lighter than air. Additionally, helium has important applications in scientific research, cryogenics, and cooling systems due to its unique properties.