A faint radio "whisper" from ancient hydrogen reveals the universe was heating up long before it filled with starlight.

Not all stars are created equally. Astronomers believe that the first stars to form after the Big Bang were mostly made of ...

Astronomers have identified what could be the largest structure ever observed in the known universe—a vast network of galaxy clusters and superclusters containing an astonishing 200 quadrillion solar ...

Ordinary matter – basically, anything other than dark matter – makes up about 15% of all matter. But half of it has long been missing. Powerful bursts of radio waves emanating from 69 locations in the ...

HD 140283, better known as the Methuselah star, is around 200 light-years from Earth, in the constellation of Libra. It is ...

For two decades, scientists believed the cosmological constant, known as λ (lambda), was positive. That meant the Universe ...

NASA's advanced space observatory known as SPHEREx is on its cosmic journey to solve some of the universe's biggest mysteries. The space telescope, which NASA has spent years developing, launched ...

"We are able to measure the local dark matter density using direct acceleration measurements for the first time." When you purchase through links on our site, we may earn an affiliate commission. Here ...

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Kevin Rodriguez Zavala of Kissimmee died of “multiple blunt impact injuries,” according to the Orange County Medical Examiner ...