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Universal Big Bang Lithium Deficit Confirmed
An anonymous reader writes New observations of the star cluster Messier 54 show that it is just as deficient in lithium as our own galaxy, furthering a mystery about the element's big bang origins. "Most of the light chemical element lithium now present in the Universe was produced during the Big Bang, along with hydrogen and helium, but in much smaller quantities. Astronomers can calculate quite accurately how much lithium they expect to find in the early Universe, and from this work out how much they should see in old stars. But the numbers don't match — there is about three times less lithium in stars than expected. This mystery remains unsolved, despite several decades of work."
Correct wording would have been "Astronomers believe they can calculate quite accurately how much lithium they expect to find in the early Universe based on their experience with other elements."
or something along those lines. The second part, i'm not sure, but the "believe they" really makes the whole point.