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Largest Supernova Dataset Hints Dark Energy May Be Changing over Time
UNITED STATES, JUL 21 – The Union3 dataset of 2,087 standardized supernovae suggests dark energy, which makes up nearly 70% of the universe, may change over time, challenging prior cosmological models.
6 Articles
6 Articles
Largest supernova dataset hints dark energy may be changing over time
It took about 50 exploding stars to upend cosmology. Researchers mapped and measured light from Type Ia supernovae, the dramatic explosion of a particular kind of white dwarf. In 1998, they announced their surprising results: Instead of slowing down or staying constant, our universe was expanding faster and faster. The discovery of "dark energy," the unknown ingredient driving the accelerated expansion, was awarded a Nobel Prize.
The analysis of the largest set of standardized supernova data ever created suggests...
Say Goodbye to Eternal Expansion? New Theory Says the Universe Will Collapse
Say Goodbye to Eternal Expansion? New Theory Says the Universe Will Collapse Is the universe slowing down? A new theoretical model based on data from DES and DESI suggests that dark energy—the mysterious force behind cosmic expansion—might not be constant after all. Instead, it may be weakening over time. If true, this could signal theSay Goodbye to Eternal Expansion? New Theory Says the Universe Will Collapse Is the universe slowing down? A new…
It took about 50 stars to explode to upset cosmology. The researchers mapped and measured light from type IA supernovae, the dramatic explosion of a particular type of white dwarf. In 1998, they announced their surprising results: instead of slowing down or remaining constant, our universe developed [...]
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