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The cover
from Contact 13
Issue 13's front cover shows a slice of a data cube at 150 MHz created for the SKAO’s third Science Data Challenge.
The challenge simulates observations of the Epoch of Reionisation (EoR), when the Universe transitioned from the so-called dark ages, to when the first stars and galaxies formed, ionising the surrounding gas. The very faint EoR signal is obscured by foreground emission from our own galaxy and others, which is depicted in the cover image; the orange dots are galaxies, while the ribbon-like shape is diffuse gas in the Milky Way. In the challenge, teams must find ways to effectively remove this foreground emission to identify the EoR signal.
Image credit: Dr Philippa Hartley (SKAO)
