white dwarf illustration

Stellar Science

White Dwarf Stars with Hiccups

Observations of two cool white dwarfs show irregular outbursts in the stars’ otherwise steady rhythm of pulsations.

SN 1987A

Stellar Science

Fade Out (For Now) on SN 1987A

The famous supernova continues to transform: its necklace of hotspots is fading away as the shock wave moves further out.