The cosmic skeleton key
Spinning the cosmic web
Weighing the invisible
The ultimate cosmic detective hunt
YOUR GOAL
Master of Mapping the universe's invisible skeleton
007skaty Gravitational lensing turns massive space structures into giant magnifying glasses
007skaty Europe's Planck mission mapped temperature fluctuations down to one-millionth of a degree in the Cosmic Microwave Background to
007skaty Glowing gas collides in a slow-motion cosmic car crash within the Bullet Cluster.
007skaty Balance cosmic ghost scales to discover how invisible dark matter shapes the universe.
Einstein's doubt: Albert Einstein predicted gravitational lensing in 1936 but wrote that astronomers would probably never be able to observe it directly.
What is the phenomenon where a massive object's gravity bends light from behind it?
What did astronomers observe in the Bullet Cluster collision that proved dark matter exists?