Sunny Priyan
Dark Energy is an unknown force causing the accelerated expansion of the universe. It makes up about 60-70% of the universe.
In 1998, reports by two groups discovered that distant supernovae appeared dimmer than expected, suggesting that the universe's expansion is speeding up rather than slowing down.
A theory suggests that dark energy is the uniform energy present throughout space, originally introduced by Einstein.
Some scientists propose dark energy could change over time, unlike a constant. These models are called 'dynamic theories', involving dynamic scalar fields.
Observations of the Cosmic Microwave Background, galaxy clusters, and baryon acoustic oscillations all support dark energy’s role in cosmic acceleration.
Dark energy is one of modern science’s biggest unsolved puzzles. It doesn’t fit into the Standard Model of physics.