Dark energy may be the most mysterious substance ever proposed, but many scientists are certain it exists. Why?

Dark energy is the name physicists have given to the mysterious thing driving the universe's accelerated expansion. It may be a force or a form of energy, and one piece of evidence suggests it is ...

For a quarter century, cosmology has rested on a simple but audacious idea: that a fixed “cosmological constant” drives the ...

The practice of energy healing has been around for centuries in cultures all over the world and has recently been picking up steam in the United States. Advocates for energy healing claim it comes ...

Lone pumpjack located in the middle of large solar array outside of Bakersfield, Kern County, California, USA. (Photo by: Citizen of the Planet/UCG/Universal Images Group via Getty Images) My previous ...

The world is in the midst of a shift away from fossil fuels and towards carbon-neutral energy sources, a change expected to be as momentous as the coal that enabled the Industrial Revolution in the ...

Emily Rhode is a science writer, communicator, and educator with over 20 years of experience working with students, scientists, and government experts to help make science more accessible and engaging ...

In 1998, research led by Saul Perlmutter's Supernova Cosmology Project, utilizing observations of distant type Ia supernovae, discovered that the universe's expansion rate is accelerating, a finding ...