Chapter 1
The cosmic skeleton key
Chapter 2
Spinning the cosmic web
Chapter 3
Weighing the invisible
Chapter 4
The ultimate cosmic detective hunt
YOUR GOAL
Master of Mapping the universe's invisible skeleton
Ch 2 · Spinning the cosmic web
007skaty Dark matter actively pulls material away to create this 330-million-light-year-wide spherical region of almost complete nothingness.
007skaty A labeled 3D glass model shows hydrogen gas concentrating inside dark matter webs.
BETA
007skaty Spin cosmic filaments to discover how the universe's invisible skeleton holds galaxies together.
Fun Fact
Cosmic void size: The Boötes Void is so massive that if the Milky Way were inside it, we wouldn't have discovered other galaxies until the 1960s.
Glossary
filament (noun)
A slender, threadlike object or fiber. Using the FAST telescope, astronomers mapped a gas filament spanning three million light-years in Ursa Major.
A slender, threadlike object or fiber. Using the FAST telescope, astronomers mapped a gas filament spanning three million light-years in Ursa Major.
Quiz
What is the massive, foam-like network of dark matter that spans the universe called?
Quiz
What survey in the 1980s first revealed the 3D, foam-like structure of the universe?