The launch of the James Webb Space Telescope (JWST) in late 2021 marks a new start for
studies of galaxy formation at high redshift (z≳ 6) during the era of cosmic reionization …

We present the properties of 17 faint Lyman-α emitting galaxies (LAEs) at z> 5.8 from the
JWST Advanced Deep Extragalactic Survey (JADES) spectroscopic data in the Hubble Ultra …

Deep surveys with the James Webb Space Telescope (JWST) have revealed an emergent
population of moderate-luminosity, broad-line active galactic nuclei (AGNs) at 4≲ z≲ 13 …

The protagonists of the last great phase transition of the universe—cosmic reionization—
remain elusive. Faint star-forming galaxies are leading candidates because they are found …

The ionizing photon escape fraction [Lyman continuum (LyC) f esc] of star-forming galaxies
is the single greatest unknown in the reionization budget. Stochastic sightline effects prohibit …

We present observations with the Cosmic Origins Spectrograph (COS) onboard the Hubble
Space Telescope of five star-forming galaxies at redshifts in the range 0.2993–0.4317 and …

Detections and non-detections of Lyman alpha (Lyα) emission from z> 6 galaxies (< 1 Gyr
after the big bang) can be used to measure the timeline of cosmic reionization. Of key …

We present results from the LymAn Continuum Escape Survey (LACES), a Hubble Space
Telescope (HST) program designed to characterize the ionizing radiation emerging from a …

Context. In recent years, a number of Lyman continuum (LyC) leaker candidates have been
found at intermediate redshifts, providing insight into how the Universe was reionised at …

Galaxies in the reionization era have been shown to have prominent [O iii]+ H β emission.
Little is known about the gas conditions and radiation field of this population, making it …