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A galaxy

Mysterious dance of dwarfs may force a cosmic rethink

The discovery that many small galaxies do not ‘swarm’ randomly around larger ones, is forcing astronomers to reconsider some aspects of how the universe formed and evolved.

Andromeda, we have you surrounded

Andromeda, we have you surrounded

Swarm of dwarf galaxies detected circling the huge Andromeda galaxy, defying current theories.

Dwarf galaxy NGC 2366

Tiny galaxy with a bright nebula

Hubble studies a small galaxy with a big, bright nebula on its outskirts.

Hubble Space Telescope image of Holmberg II

Galaxy caught blowing bubbles

Hubble spots huge glowing bubbles of hot gas in a strange dwarf galaxy.