Researcher Matthew Graham said scientists didn't initially "believe the numbers about the energy" emitting from the cosmic ...

For nearly three decades, astronomers have interpreted the faint luminosity of certain distant explosive stars as a sign of ...

James Webb Space telescope spots 'big red dot' in the ancient universe: A ravenous supermassive black hole named 'BiRD' ...

I/ATLAS has unexpectedly become bluer than the Sun, hinting that it could be emitting light, not just reflecting it — a sign ...

Evidence now suggests the universe’s expansion has started to slow, not speed up. The findings imply dark energy is weakening ...

The expansion of the universe is already confusing and controversial, with researchers unclear exactly how fast it is going ...

Learn what a black hole is, how it forms, and how astronomers detect it. Understand the science behind black holes and their ...

The puzzle of how supermassive black holes grew so large just after the Big Bang could soon be solved. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...

The Kepler space telescope is the source of more exoplanet discoveries than any other telescope, so why haven't we heard ...

The two keys to Edwin Hubble's breakthrough discovery were forged by others in the 1910s. The first key, the period-luminosity scale discovered by Henrietta Leavitt, allowed astronomers to calculate ...

A century ago, Edwin Hubble began the race to the edge of the cosmos Damond Benningfield In 1930, Albert Einstein met with astronomers (including Edwin Hubble, at Einstein's left, back row) at Mount ...