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Editors of EarthSky

Robot explorer discovers new species of anemone under Antarctic ice

"When we looked up at the bottom of the ice shelf, there they were ... People were literally jumping up and down with excitement." -- Frank Rack

Tiny machines that swim using heart muscle cells

"Micro-organisms have a whole world that we only glimpse through the microscope. This is the first time that an engineered system has reached this underworld." - Taher Saif

Biggest fossil spider

Jurassic fossil spiders were a rare find, until the 21st century, when farmers in China began turning up Jurassic-period arachnids on a hillside.

Great white sharks live almost as long as people

Radiocarbon dating revealed one shark was 73 years old. Sharks that live long and mature late are more sensitive to fishing pressure than previously thought.

A day later, caffeine stimulates memory

Caffeine helps people remember fine distinctions between similar things at least up to 24 hours after it is consumed, new research shows.

Scientists explore skin colors of extinct marine reptiles

"Our discovery enables us to make a journey through time and to revisit these ancient reptiles using their own biomolecules." - Per Uvdal, research team member.

Harnessing the sun’s energy during the day for use at night

"It's not practical to talk about powering a planet with energy stored in batteries. It's more reasonable to store energy in the chemical bonds of molecules." - Tom Meyer

Starting fire with water

Astronauts on the ISS are experimenting with "supercritical water," a form of water with a strange property: it can help start fire.

These stars are so fast they can escape the Milky Way

These sun-like stars that are moving at speeds of more than a million miles per hour relative to our galaxy - fast enough to escape its gravitational grasp.

NASA orbiter spies Chang’e 3 and Yutu rover on the moon

Cool image of the landing site of China's moon mission, taken by a NASA's Lunar Reconnaissance Orbiter. Also, a word on first science results from Chang'e.