See it! Best photos of March 20 solar eclipse

Awesome photos of the March 20 solar eclipse, by EarthSky Facebook and G+ friends lucky enough to see it, and kind enough to share their pics.

Dawn breaks over Ceres … and perhaps reveals signs of habitability

The Dawn spacecraft is about to start its investigation of Ceres. Suggestions of icy volcanism have led to speculation that the dwarf planet could potentially be habitable.

Aurora and mysterious dust cloud around Mars

Spacecraft spies two strange phenomena in the Martian atmosphere: An unexplained high-altitude dust cloud and aurora that reaches deep into the Martian atmosphere.

Most stars have planets in habitable zone

Researchers calculate that billions of stars in our Milky Way galaxy have 1-3 planets in the habitable zone, where there may be liquid water and life.

Colors of life on exoplanets

Scientists measure chemical fingerprints for 137 different microorganism species. They hope astronomers will use the colors to recognize life on distant planets.

Possible rings around minor planet Chiron

Chiron is the second minor planet and the second centaur - orbiting beyond Jupiter in the outer solar system - suspected to have a ring system.

Angara rocket key to Russia’s launch future

With development stalled many times over 20 years, successful Angara test flights have buoyed Russian hopes to compete in the space launch industry.

Underground ocean on Jupiter’s largest moon

An ocean below the surface of Jupiter's large moon Ganymede has more water than all earthly oceans, according to evidence from the Hubble Space Telescope.

Milky Way has 3 more satellite galaxies

At least! Six other objects could be either dwarf galaxies or globular clusters. These humble Milky Way satellites are a key to the dark matter puzzle.

March 20 eclipse and the Saros

There are currently 40 different Saros series in progress, each with its own assigned number. The total solar eclipse of March 20, 2015 belongs to Saros 120.

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