Astronomers from the Harvard-Smithsonian Center for Astrophysics (CfA) and elsewhere report the discovery of a new brown ...

Astronomers have sighted the oldest known stellar explosion, dating back to when the universe was less than a billion years ...

Mars changed from a blue world with water to a red desert because its atmosphere escaped into space over billions of years.

A mysterious cosmic scar reveals two massive stars that passed near our solar system millions of years ago, energizing nearby ...

When the 3 rd -century Christian theologian Origen of Alexandria attempted to account for the unusual movements of the Star ...

"Some of our ancestors were very skilled observers." A team of international researchers say they've uncovered new data on ...

A NASA planetary scientist has proposed what may be the first scientifically sound explanation for the mysterious Star of Bethlehem that guided the three wise men to the infant Jesus over two ...

A new study revisits ancient Chinese records to explore whether a comet could explain the Star of Bethlehem described in ...

The Webb space telescope observed a supernova that took place when the universe was 730 million years old, setting a new ...

For more than a century, astronomers debated the possibility of martian canali (channels) which Italian astronomer Giovanni Schiaparelli claimed to see on the Red Planet in 1877. Mistranslated into ...

High on a hill in Turkey, the world’s oldest temple may hide a cosmic secret. Did its builders align their pillars with ...

The discovery of a hidden supermassive black hole inside an ancient galaxy suggests that some of our universe's most extreme objects could be invisible unless observed in infrared wavelengths, James ...