Smallest, faintest, most numerous galaxies seen yet in distant universe

Normally these remote galaxies would be too faint to see, even with the Hubble Space Telescope. Astronomers used a bizarre trick of nature to photograph them.

Top ways to search the Internet for time travelers

Key strategy involves Internet searches for a mention of something before it actually happened.

First gamma-ray study of a gravitational lens

The work could provide insights into the workings of black-hole jets and help us understand the rate of the expansion of the universe.

Images of a supernova’s dust factory

New images reveal a supernova remnant chock full of material that simply did not exist a few decades ago, say researchers.

Triple millisecond pulsar reveals secrets of gravity

Astronomers have pinned down masses and orbits of three stars in a unique system. Next, they'll use the system to study details in Einstein's theory of General Relativity.

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.

Flower preserved in 100-million-year old amber one of most complete ever found

The perfectly-preserved scene is from the mid-Cretaceous, when flowering plants were changing the face of the Earth forever, adding beauty, biodiversity and food.

View from space: Earth’s tallest mountain

A satellite view of Mount Everest

Where we experience emotions in our bodies

Researchers found consistent results, even across cultures. For example, anxiety might feel like chest pain, while falling in love might trigger body-wide sensations.

Electric-blue clouds appear over Antarctica

A vast bank of electric-blue clouds has appeared over Antarctica, signaling the start of the season for southern hemisphere noctilucent clouds.