Advanced Cell Technologies reports that two patients are doing well after receiving retinal stem cells. The patients are legally blind, and the treatment may have improved their vision slightly (if it isn't placebo effect), but the treatment was a safety test, not a test of efficacy.
The Burgess Shales, in Canada, are famous for producing very old, very weird fossils. They've done it again. The latest oddities are creatures shaped like tulips, which apparently fed by filtering plankton.
Paleontologists have found the skull of a dog (not a wolf) 33,000 years old, in Siberia. This is about the oldest evidence of dogs found yet. But there is another ancient dog in Belgium. Neither the Siberian nor the Belgian dog appears to be ancestral to modern dogs, according to DNA tests. This may mean that dogs were domesticated from wolves several different times. (Or that they were first domesticated even further back.)
Various kinds of "invisibility cloaks" have been around for a few years now, but the latest advance in the field is a block of "metamaterial" (artificial materials with properties not found in nature) that cloaks a solid object when viewed from any angle. However, it only works in the microwave range. Perfect for radar stealth, though.
A species of Galapagos tortoise, thought to be extinct, turns out to survive in a remote corner of the islands.
Back in 2008, astronomers thought they had captured a direct image of a planet orbiting the star Formalhaut, 25 light-years away. But a second look fails to find the planet. Astronomers are wonderin if the "planet" was a background star or a bit of gas cloud.
Over the years, astronomers have seen odd flashes of fire on the moon. Fire. On the airless moon. What? A new theory has it that the flares are from bits of ultra-hot material kicked up by meteor falls.