The diagram identifies seven different types of stars, and white dwarfs are among this group. Other types of stars include protostars, T Tauri stars, main sequence stars, red giants, red dwarfs ...

The new image of SNR 0509-67.5 proves that at least some Type Ia supernovae explode twice. In this model, the white dwarf forms a layer around itself of helium that it took from its companion.

Transits of exoplanets in front of their white dwarf host stars could reveal the presence of water. When you purchase through links on our site, we may earn an affiliate commission. Here’s how ...