Mystery moon domes found on far side

Mysterious volcanic domes - rich in silica - have been found on the far side of the moon. Their origin remains enigmatic. Read more about mystery moon domes.

Final photo of Atlantis in space: End of an era

On July 21, just 21 minutes before Atlantis' final deorbit burn, astrophotographer Thierry Legault captured this image of the shuttle crossing in front of the sun.

Largest, oldest mass of water in universe around a black hole

The cloud of water vapor - 140 trillion times more water than in Earth's oceans - is 12 billion light-years away and surrounds the black hole of quasar.

Exoplanet aurora is out of this world

An exoplanet like a hot Jupiter, orbiting close to its sun, would likely have an aurora up to 1,000 times brighter than one on Earth. Read more on exoplanet aurora.

See the space shuttle in photos from final flight

Photos from STS-135, the historic final flight in NASA's space shuttle program.

Bonnie Dunbar on the end of the space shuttle era

Astronaut and engineer Bonnie Dunbar, who made five shuttle flights and helped build NASA’s shuttle program, reflects on the end of an era.

Hubble Space Telescope discovers fourth moon of Pluto

As the Hubble Space Telescope worked to support NASA's New Horizons mission to Pluto, it also found a fourth moon for the dwarf planet, scientists announced today.

Southern lights seen from space

Pictures taken from the International Space Station and from Antarctica show a stunning green aurora in July 2011. Read more about southern lights.

A cosmic superbubble

Nebula LHA 120–N 44 surrounds star cluster NGC 1929, appearing as a cosmic superbubble within the Large Magellanic Cloud. Read more and see the image.

Asteroid Vesta seen in 1st Dawn image

NASA engineers estimate that Dawn orbit capture around Vesta took place around 5 UTC Saturday, July 16. This image is from 9,500 miles (15,000 kilometers) away.