The HUDF, which is the Hubble Ultra Deep Field, has just discovered quite unexpected abundance of the Lyman-alpha emission, according to the reports. This was only possible with the assistance of a team of astronomers which actually used the instrument called as the MUSE instrument, which was on the huge telescope of ESO, called as Very Large Telescope. This emission which was recently discovered is said to cover almost all of the field of view, and hence the team has extrapolated that the almost all of the sky is actually glowing with this emission which is said to be coming from the early universe.
Many astronomers have been looking at the sky from different perspectives and the sky has been looking different at different wavelengths, but even though, this observation of the aforementioned emission was quite surprising for this particular team of the astronomers. This HUDF region which was observed by the team is said to be quite a remarkable area in the Formax constellation, and this is said to be mapped earlier by the Hubble telescope quite a few years ago, in 2004. During this time, the telescope spent nearly 270 hours while observing this particular region of the space.
This time, the HUDF observation has indeed revealed nearly a thousand galaxies which have scattered form the patch of sky which is said to be quite dark, and this discovery has actually given the world quite a humbling scale of the universe. The astronomers have said that because of this discovery the world is getting an entirely different view of the gas cocoons, which surround multiple galaxies in the universe. The fact that needs to be noted here is that a few other hydrogen line searches have happened in the recent past as well, which amount to nearly three dozen searches.