Research Highlights

Selections from the scientific literature by Nature's news team

  • Volume 595
  • Issue 7866
Cavity set-up in a vacuum chamber.

A detector that measures photons without altering them includes two mirrors (white cones in round aperture) inside a vacuum chamber (silver enclosure). Credit: Max Planck Institute for Quantum Optics

Optics and photonics

Tracking a photon without leaving a trace

Conventional detectors often obliterate photons, but the particles can escape a vacuum-based device unscathed.
Still of a video showing the formation and evolution of the first stars and galaxies

A snapshot of galaxies and stars evolving a few hundred million years after the Big Bang (image extracted from a simulation). Gas filaments are depicted in purple, starlight in white, and highly energetic radiation from the most massive stars in yellow. Credit: Harley Katz, Beecroft Fellow/Univ. Oxford

Astronomy and astrophysics

When was cosmic dawn? Some of the most distant galaxies known hold a clue

Light from the early days of the Universe helps to pin-point when the stars switched on after the Big Bang.
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