JWST Glimpses the Cosmic Dawn of the Universe

Thanks to the JWST, galaxies that existed during the Cosmic Dawn have been observed for the first time!

Universe Today
MIRI instrument on JWST detects H-alpha emission during the Epoch of Reionization for the first time

An international team of astronomers led by Pierluigi Rinaldi of the University of Groningen has detected for the first time H-alpha emission in individual galaxies during the so-called Epoch of Reionization, or cosmic dawn. To do so, they used the deepest images taken so far by the MIRI instrument on the James Webb Space Telescope. The result has been accepted for publication in The Astrophysical Journal, and is currently published on the arXiv preprint server.

Phys.org

Some nice work by colleagues at MPIA showing that a pupported z~7.4 quasar is, it seems, just an asteroid.
https://iopscience.iop.org/article/10.3847/2515-5172/accb5b

#Astrodon #Astronomy #Astrophysics #EpochOfReionization #EoRQSO

Construction Begins on the Square Kilometer Array

At twin ground-breaking ceremonies today in South Africa and Australia, project leaders formally marked the start of construction on what will be the largest radio telescope ever built. Dubbed the Square Kilometer Array Observatory (SKAO) – referring to the total area the antennas and dishes will cover when complete – the telescope is not a … Continue reading "Construction Begins on the Square Kilometer Array"

Universe Today