Explaining what BoAs are, they explain in the paper that they are "not gravitationally bound because the relative motion of distant points within it is usually dominated by cosmic expansion." ...

The Great Filter theory suggests that our lack of contact with extraterrestrial civilizations may arise from either their ...

"This discovery poses a challenge to the Lambda Cold Dark Matter model, which may struggle to account for the formation of such small, aligned groups of galaxies in isolated environments." ...

From there, scientists can rewind cosmic time, running the clock backward to estimate the universe's maximum age. Time begins for us at the moment of the Big Bang, when in a tiny fraction of a ...

There's a cosmic 'Christmas Wreath' hanging in the Small Magellanic Cloud, the James Webb and Chandra telescopes revealed in a sparkly new image. A prime example is the Christmas wreath-shaped NGC ...

For his next trick, your cosmic correspondent for the past quarter-century will (try to) retire. By Dennis Overbye As the day shrinks into its annual darkness, here’s what I know about the ...

These accelerators are sometimes humanmade and therefore live on Earth — other times, they're of the cosmic sort and exist in deep space. Indeed, over the past 12 months there has been a great ...

With celestial alignments, cultural shifts, and technological leaps, this year stands out as a cosmic turning point. Here’s a look at why 2025 holds the key to transformation. Celestial ...

An international team of astronomers, led by researchers from the Astronomical Observatory of the University of Warsaw, have identified a new class of cosmic X-ray sources. The findings have been ...