For a generation, cosmologists have treated dark energy as a fixed backdrop, a steady pressure stretching space faster and faster forever. Now a wave of new measurements suggests that this invisible ...

For more than two decades, the standard model of cosmology has stood as a reliable guide to the universe. Known as Lambda Cold Dark Matter, or ΛCDM, it weaves together dark energy, dark matter, and ...

Add Yahoo as a preferred source to see more of our stories on Google. G299 Type Ia supernova remnant. Measurements from Type Ia supernovae, baryon acoustic oscillations (BAO), and the cosmic microwave ...

The federal government's Energy Star program is in jeopardy. Almost 90% of Americans recognize the blue Energy Star logo, which the Environmental Protection Agency awards to the most energy-efficient ...

For a quarter century, cosmology has leaned on one framework to explain how the universe expands. Known as the ΛCDM model, it assumes about 70 percent of the cosmos is filled with an unseen force ...