In the 19th century, the Rosetta Stone allowed scholars to translate symbols left by an ancient civilization and decipher the meaning of Egyptian hieroglyphics. 

But many mysteries remain about the symbols found on other ancient artifact, including those of a people that inhabited the Indus valley on the present-day border between Pakistan and India. Some experts question whether the symbols represent a language at all, or are merely pictograms that bear no relation to the language spoken by their creators. 

The Wildlife Conservation Society announced at the International Coral Reef Initiative (ICRI), which is meeting this week in Phuket, Thailand, results showing that some coral reefs off East Africa are unusually resilient to climate change due to improved fisheries management and a combination of geophysical factors.

The study published in Aquatic Conservation: Marine and Freshwater Ecosystems provides additional evidence that globally important "super reefs" exist in the triangle from Northern Madagascar across to northern Mozambique to southern Kenya, they say, and should be a high priority for future conservation action.

A research team from Northeastern University and the National Institute of Standards and Technology (NIST) has discovered that a residue of a process used to build arrays of titania nanotubes (that wasn’t even previously noticed), plays an important role in improving the performance of the nanotubes in solar cells that produce hydrogen gas from water. Their results indicate that by controlling the deposition of potassium on the surface of the nanotubes, engineers can achieve significant energy savings in a promising new alternate energy system.

A trove of Benjamin Franklin letters has turned up in the British Library. Discovered by University of California, San Diego professor Alan Houston, the letters are copies of correspondence that hasn't been seen in more than 250 years. 

All dating from the spring and summer of 1755, the 47 letters by, to and about Franklin are in the hand of one Thomas Birch, a contemporary of Franklin's who was a prodigious – almost inveterate – compiler and transcriber of historical documents.   They are being published for the first time in the April issue of the William and Mary Quarterly. 

The circadian clock coordinates physiological and behavioral processes on a 24-hour rhythm, allowing animals to anticipate changes in their environment and prepare accordingly.

Scientists already know that some genes are controlled by the clock and are turned on only one time during each 24-hour cycle but now researchers at the University of Pennsylvania School of Medicine and the Salk Institute for Biological Studies have found that some genes are switched on once every 12 or 8 hours.

Genome sequencing is getting better and faster.  Two months ago we had the first draft of the neanderthal genome and now scientists from the University of Maryland have published their assembly of the Bos taurus - the domestic cow.  Sure that's not as exciting to the wider population but it's important to the genetics community.