IAU stands for International Astronomical Union, an international scientific organization that promotes and protects astronomy through research, education, development, and communication. The IAU is made up of individual and national members, with the National Academy of Sciences serving as the U.S.Read more

A giant star has a substantially larger radius and luminosity than a main-sequence (or dwarf) star of the same surface temperature. Giant stars have radii up to a few hundred times the Sun and luminosities between 10 and a few thousand times that of the Sun. Stars still more luminous than giants areRead more

Alexander Fleming was a Scottish physician-scientist who was recognised for discovering penicillin.

Jupiter is the largest planet in the solar system. It's about 11 times wider than Earth with an equatorial diameter of 88,846 miles (about 142,984 kilometers). Jupiter is the fifth planet from the Sun, orbiting at an average distance of 483.7 million miles (778 million kilometers).

The Pacific Ocean is the largest ocean in the world, covering more than one-third of the Earth's surface and nearly half of Earth's water. It's also the deepest ocean, with an average depth of 4,280 meters and 165 million square kilometers.