First, the orbital option described in the article is not L2 but rather a low lunar orbit which spends only a small fraction of it's time in the lunar shadow.
Second, in my comment I literally quote the "first step" claim and explain why it's an extreme understatement, in particular because the shielding is not worse except for undetectable wavelengths and sources not actually pointed at the telescope. It's like saying we should we should build transparent houses so we get more vitamin D but of course as a first step we should go outside or take a multivitamin.
Second, in my comment I literally quote the "first step" claim and explain why it's an extreme understatement, in particular because the shielding is not worse except for undetectable wavelengths and sources not actually pointed at the telescope. It's like saying we should we should build transparent houses so we get more vitamin D but of course as a first step we should go outside or take a multivitamin.