How to focus a space telescope.
Photo-animations and space science.
A shade screen for a telescope.
A telescope to see the universe.
Remotely viewing oceans and clouds.
Besides Australia's koalas, nothing is more iconic than a giant rock.
A 'grand design' millions of light-years away.
Climate change impacts explained by high school textbooks.
Northern Lights viewed from space.
Don't be caught by rising tides.
Satellite data can be animated.
The Larsen-C ice-shelf has collapsed.
A geological revolution with remote sensing.
Cassini takes a bow and is gone.
The European Space Agency has released a spectacular photograph confirming liquid water once flowed on Mars. The liquidity may have been a long time back-- 3+ billion years ago --but this is an essential piece of the puzzle to determine if life ever evolved on the Red Planet.
The photo shows Eberswalde Crater where a rare instance of a martian river delta is seen. Channels that fed a lake inside the crater are obvious. Delta deposits and channels provide the best evidence yet of liquid ...
Today is Neptune's birthday. It only gets a birthday once every 164 years, since that how long it takes to orbit the sun.
That's what a birthday is, after all. Once around our big ball of fire.
Neptune, one of the Solar System's gas giants has just completed its only orbit around the sun since being discovered in 1846.
The Hubble Space Telescope captured these fine, new, celebratory photos of the blue-green planet:
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