Delightful Knowledge is only moderately delightful.
A couple of their articles, namely, the article “NASA Confirms Earth Will Experience 6 Days of Total Darkness in December 2014!,” cite Huzler.com as a source.
Huzler.com has the following disclaimer in their footers:
“Huzlers.com is a combination of real shocking news and satirical entertainment to keep its visitors in a state of disbelief.”
We assume, then, that DK is much of the same non-news, or they are just really bad at verifying sources.
By the way, the NASA Black-Out Report thing is false.