A recent study published in Geology found that sedimentary rock can form in as little as 35 years.^1,2 Before this, conventional geologists thought these types of rocks took vast amounts of time to erode, consolidate, and lithify. What they discovered along the coast of Scotland caused them to quickly change their minds.

After Leif Eiriksson’s original voyage to North American shores, the Greenland Vikings remained in “Vinland the Good” for a time—but for how long? A couple of decades, at least, according to new evidence reported in Nature.^1,2

About 1,600 years ago, salt miners in Iran apparently left their lamb lunch down the shaft. Their loss became scientists' gain. The now-mummified sheep carcass suggests that salt helps preserve sheepskin DNA.