Stars

Galaxies, Stars

“Wasteful” galaxies launch heavy elements into surrounding halos and deep space, study finds

Galaxies, Stars

New observational distance record promises important tool for studying galaxies

Galaxies, Stars

Mizar and Alcor, the Sombrero Galaxy (M104), and elliptical galaxy M60

Deep-Sky Objects, Galaxies, Stars

Cor Caroli, the Pearl Cluster (NGC 3766), and the Leo Triplet

Alien Life, Exoplanets, Planets, Stars

Number of habitable planets could be limited by stifling atmospheres

Exoplanets, Planets, Stars

Footprints of baby planets found in a gas disk

Exotic Objects, Galaxies, Stars

Supermassive black holes cause galactic-scale warming

Deep-Sky Objects, Galaxies, Stars

The double star Pulcherrima, the Owl Nebula (M97), and barred spiral galaxy M108

Alien Life, Exoplanets, Planets, Stars

Hunting for hidden life on worlds orbiting old red stars

Stars

New analysis shows no long-term dimming around “alien megastructure” star

Stars

Metal content in early galaxies challenges star-forming theory

Exotic Objects, Stars

New model could help find gravitational waves in binary pulsars