An excess of gamma rays in the center of our galaxy could mean scientists have finally detected dark matter particles—or not ...

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

The Methuselah Star, also known asHD 140283, has long been a subject of fascination among astronomers. Its age, initially ...

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

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

Researchers have unveiled a new model for the universe’s birth that replaces cosmic inflation with gravitational waves as the ...

On human timescales, the universe may as well be eternal. It’ll be here long after our species and our planet are gone, but ...

The younger black hole, the product of a cataclysmic cosmic event known as a black hole merger, was first spotted in 2019. Now, about 6 years later, a team of international researchers led by the ...

A star found in the Large Magellanic Cloud is remarkably unpolluted by heavier elements, suggesting it is descended from the ...

Did you know that we have a cosmic address? For example: Home, Spokane, Washington, United States, Earth, the Solar System, Orion Arm, the Milky Way, Local Group, Virgo Cluster, Virgo Super-Cluster, ...

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