The mystery of missing mass
Mapping the invisible
The runaway cosmos
The ultimate fate of the universe
YOUR GOAL
Master of The invisible universe
artiteacher The runaway cosmos
The distance is growing, the galaxies racing, we're flying apart!
artiteacher A mathematical placeholder invented by Albert Einstein in 1917 has become the leading explanation for the behavior of dark energy.
artiteacher Dark energy is a mysterious, repulsive pressure that fills all of empty space and drives the accelerating expansion of the cosmos.
Cosmic ingredients: Normal matter—everything we can see, touch, and study—makes up less than five percent of the entire universe.
A theoretical repulsive force that counteracts gravity and causes the universe to expand at an accelerating rate. In 1998, astronomers discovered this force while measuring the light from distant Type Ia supernovae.
What term did Albert Einstein invent in 1917, later calling it his 'biggest blunder', which now describes dark energy?
Who were the lead astronomers awarded the 2011 Nobel Prize in Physics for discovering cosmic acceleration?
In what year did astronomers shock the world by discovering that the universe's expansion is accelerating?
Which Nobel Prize-winning discovery proved that gravity is losing the cosmic tug-of-war against dark energy?
What type of dying star did researchers use as 'standard candles' to measure cosmic distances and discover dark energy?