Dark energy—the term used to describe whatever is causing the universe to expand at an increasing rate—is one of the universe ...

For more than a century, physics has been built on two great theories. Einstein's general relativity explains gravity as the ...

For a quarter century, cosmology has leaned on one framework to explain how the universe expands. Known as the ΛCDM model, it ...

In a new study, scientists began pondering a pretty wild question: What if black holes can convert dead star matter into dark energy, the mystery force driving the acceleration of the expansion of the ...

"We've been waiting to reach this point for a long time." Using the largest catalog of exploding white dwarf vampire stars ever gathered has provided further evidence that dark energy, the mysterious ...

Dark energy, the mysterious force driving the accelerated expansion of the universe, has puzzled scientists since its discovery in 1998. Despite its elusive nature, dark energy is believed to ...

Our understanding of cosmology hinges on how well we know our own local universe, which remains poorly mapped and poorly ...

For more than two decades, astronomers have wrestled with one of the biggest mysteries in science: what is driving the ...

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Astronomers are using radio pulses from space to find missing baryonic matter and learn about supermassive black holes, ...