According to this scenario, life on Earth was originally based on RNA only, and DNA and protein enzymes evolved later.

Earth-based telescopes that look that far back to the big bang (BB) 13.8 billion years ago are unable to resolve the relevant details.

Researchers have identified a distant object with properties that lie in-between those of a galaxy and those of a so-called quasar.

An international team of astronomers has spotted the most distant astronomical object ever: a galaxy some 13.5 billion light-years away.

In the chaos before the Big Bang cooled, a fraction of the quarks and gluons collided randomly to form short-lived "X" particles.

For astronomers, the ability to observe the Cosmic Dawn represents an opportunity to answer the most enduring cosmic mysteries.

The James Webb Space Telescope, which astronomers hope will herald a new era of discovery, will launch on December 18, 2021.