An over-the-counter hormone supplement called melatonin, typically made from animal pineal glands or synthesized in a laboratory, was tested on rats in the present study to see if it would be able to protect the intestines of rats treated with radiation.
Radio astronomers working with a radio dish telescope detected something a bit unusual. They were seeing a very fast radio burst, faster and more irregular than any signal in the history of radio astronomy. This radio burst was coming at very short time scales, lasting just a few milliseconds. The signal was irregular, very fast, and strong. This rapid burst has been something of a mystery since it was first discovered.