Science ❯ Astronomy ❯ Cosmology

Stellar Evolution

Massive Stars Failed Stars Binary Black Holes Preplanetary Nebulae Neutron Stars Ancient Stars Dark Stars Supernova Pre-Planetary Nebulae White Dwarfs Planetary Disintegration Supernova Remnants Star Formation Binary Stars Water Formation First Generation Stars Planetary Nebulae Black Hole Formation Planetary Systems Hawking Radiation Supernovae

Ancient Star in Pictor II Bears the Imprint of One Weak First-Generation Supernova

The find offers a rare look at the universe’s initial element production in a primordial galaxy.

Hubble Unveils Clearest Image Yet of the Egg Nebula

Chandra’s 25-Year X‑Ray Timelapse Charts Uneven Expansion of Kepler’s Supernova Remnant

JWST Study Flags Four Possible ‘Dark Stars,’ Including One With Tentative Helium Signature

Chandra Observations Reveal Rapid Atmospheric Loss on Exoplanet TOI 1227b