When we first began searching for planets around other stars, one of the surprising discoveries was that there are planets orbiting white dwarfs. The first exoplanets we ever discovered were white ...

This particular star is roughly half the mass of our sun and is located near the bottom of the white dwarf cooling sequence, ...

Astronomers theorize that a low-mass white dwarf, a compact core of a dead star about as large as Earth, could be the culprit. A cosmic mystery surrounding a black hole some 270 million light ...

It will spend a lot longer in the white dwarf phase than it does as a main sequence star ... as well as estimates of the effectiveness of the cooling approaches discussed above.