Exosolar planets Exoplanetary bodies Extrasolar planets Exo-orbitals
6.1 light years 4.2 light years 12.5 light years 50.3 light years
Energiya Proton Zenit Buran
Exobiology Exoalienology Alienology Bioalienology
Trapped Surface Singularity Event Horizon Schwarzschild Radius
Mars & Jupiter Earth & Mars Jupiter & Saturn Saturn & Uranus
Skylab International Space Station Mir Apollo-Soyuz Test Project
90 million km 200 million km 150 million km 120 million km
Young supermassive galaxies Supermassive black holes Massive supernovae The limit of the known universe
Quasar Black Hole White Dwarf Pulsar