product is primarily marketed towards developing countries, where the costs of buying new eyeglasses can be prohibitively high.

The water on Mars debate rages on

Evidence recovered from Martian meteor Yamato gives credence to the idea that at some point there was liquid on Mars. Tim Evanson/Flickr Commons

A team of scientists has discovered possible evidence pointing towards the past existence of water on Mars by examining a Martian asteroid on Earth.

The team of scientists, led by Lauren White of the NASA Jet Propulsion Laboratory, examined the asteroid Yamato, which was found on the Yamato glacier in Antarctica. The asteroid was dated to 1.3 billion years ago and contained tunnel structures and spherules between the layers of rock which are distinct from the surrounding layers.

Both these features are indicative of bioticGilbert offer for Wayne County jail site expected within days

Businessman Dan Gilbert and his top aides plan to make an offer to buy the Wayne County Jail site this week, bringing to a head the controversy over whether the prominent downtown property next to Gilbert's Greektown Casino is best suited for a soccer stadium or criminal justice use.

A statement attributed to Matt Cullen, head of Gilbert's Rock Ventures, says the Gilbert team has been working with architectural firm HOK and construction firm Barton Malow over several months to develop an offer for the jail site. Wayne County Executive Warren Evans has said he needs the offer by Feb. 10.

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"The timing requirements put forward by County Executive Evans are clear and fully understood by our team," Cullen said in