type articles

What is the hottest type of star letter?

The sheer variety of stars visible in the night sky might suggest an infinite list of names, but astronomers have develo...

Are O-type stars the hottest?

The short answer to whether O-type stars are the hottest is an emphatic yes. Within the primary sequence of stellar clas...

Which type of galaxy contains mostly older stars?

When we gaze into the cosmos, the sheer variety of galaxies can seem overwhelming, but astronomers simplify this vastnes...

What type of galaxies have gas and dust in them?

The makeup of a galaxy—specifically, the presence or absence of the raw materials for new stars—is fundamentally tied to...