Black Holes

Exotic Objects, Planets

Ask Astro: Does Planet Nine have enough mass to be a black hole?

Exotic Objects

Snapshot: Dusty light veers from a black hole’s throat

Exotic Objects, Galaxies

Ask Astro: Do supermassive black holes create bars in galaxies?

Cosmology, Exotic Objects

Tests of general relativity with gravitational waves can go awry

Exotic Objects, Galaxies

Astronomers score a triple-double

Exotic Objects

Have astrophysicists finally discovered primordial black holes?

Exoplanets

How TESS hunts more than just exoplanets

Exotic Objects

Watch: Dancing supermassive black holes

Exotic Objects, Galaxies, Robotic Spaceflight

Snapshot: Rare double quasar caught in action

Cosmology, Exotic Objects

Ask Astro: How do gravitational waves reveal the distances and masses of colliding objects?

Cosmology, Exotic Objects

Primordial black holes could explain dark matter, galaxy growth, and more

Exotic Objects

Could we steal energy from leaking black holes?