Gravitational lenses have been used previously to resolve individual stars in the distant Universe. Using the microlensing of ...

Credit: NASA, ESA, CSA, STScI "Space is big ... Cepheid variables are an important rung on the cosmic distance ladder, a system astronomers use that builds one observation on another to draw ...

The revolutionary James Webb Space Telescope and next-gen radio telescopes are probing what’s known as the epoch of reionization. It holds clues to the first stars and galaxies, and perhaps the nature ...

Cosmic inflation tries to describe one brief ... Credit: NASA / ESA / A. Schaller (for STScI) illustration That's it. It doesn't suggest what the conditions were before expansion.