Small Magellanic Cloud size and scale context

The Small Magellanic Cloud is a nearby dwarf galaxy and one of the Milky Way’s closest galactic companions. Its modest size, distorted shape, and active star-forming regions make it an important laboratory for studying how small galaxies evolve under the gravitational influence of larger neighbors. Read its scale context, comparisons, and journey links on the canonical object page.

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Between the smallest and the largest, perspective is everything.

About

Scale of Space is a scroll-based journey through the universe, placing objects on a single logarithmic scale so you can compare size across an unbroken range.

Guides turn parts of that scale into curated essays, while focused views let you explore the same range through specific groups of objects.

Editorial

Solar System Planets From Electron to Atoms Stars To Scale Birth And Death Of Stars Black Holes To Scale

Views

Planets of the Solar System Stars of the Universe Black holes Subatomic scale

Return to Earth hello@scaleofspace.org

Between the smallest and the largest, perspective is everything.

About

Scale of Space is a scroll-based journey through the universe, placing objects on a single logarithmic scale so you can compare size across an unbroken range.

Guides turn parts of that scale into curated essays, while focused views let you explore the same range through specific groups of objects.

Editorial

Solar System Planets From Electron to Atoms Stars To Scale Birth And Death Of Stars Black Holes To Scale

Views

Planets of the Solar System Stars of the Universe Black holes Subatomic scale

Return to Earth hello@scaleofspace.org

Galaxy clusters

Abell 1689

Abell 1689 is a massive galaxy cluster whose gravity creates some of the strongest and clearest gravitational lensing arcs ever observed. It is packed with galaxies, dark matter, and hot intracluster gas, making it one of the best-studied natural lenses for probing both the distant universe and the hidden mass inside galaxy clusters.

Scale fact~2.4 million lydiameter

Object class: Galaxy cluster
Composition: ~1,000 galaxies, hot intracluster gas, dark matter

Galaxy clusters

Pandora's Cluster

Pandora's Cluster, also known as Abell 2744, is a giant galaxy cluster shaped by a violent and complicated merger of smaller clusters. Its galaxies, superheated gas, and dark matter have been pulled apart and redistributed in different ways, making it one of the clearest natural laboratories for studying how ordinary matter and dark matter behave during colossal cosmic collisions.

Scale fact4 million lydiameter

Object class: Galaxy cluster
Composition: Several hundred galaxies, hot intracluster gas, dark matter

Galaxy clusters

Bullet Cluster

The Bullet Cluster is a pair of colliding galaxy clusters whose components have been torn apart by impact. Its galaxies and most of its mass passed through relatively cleanly, while the hot ordinary gas lagged behind, making the system one of astronomy’s clearest pieces of evidence that most matter in galaxy clusters is dark matter.

Scale fact6.3 million lyobserved field width

Object class: Colliding galaxy clusters
Composition: ~40 galaxies, hot intracluster gas, dark matter