Anastasia Fialkov

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The image shows a deep galaxy field, featuring thousands of galaxies of various shapes and sizes

Cosmic signal from the very early universe will help astronomers detect the first stars

20 Jun 2025

Understanding how the universe transitioned from darkness to light with the formation of the first stars and galaxies is a key turning point in the...

Observations by the NASA/ESA Hubble Space Telescope have taken advantage of gravitational lensing to reveal the largest sample of the faintest and earliest known galaxies in the universe.

Non-detection of key signal allows astronomers to determine what the first galaxies were – and weren’t – like

28 Nov 2022

Researchers have been able to make some key determinations about the first galaxies to exist, in one of the first astrophysical studies of the period...

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Anastasia Fialkov

Cosmic signal from the very early universe will help astronomers detect the first stars

Non-detection of key signal allows astronomers to determine what the first galaxies were – and weren’t – like

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