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The concept of the phases of the moon can seem puzzling but with the help of this app it can be solv

Have you seen the solar eclipse?When the Moon covers Sun, it will become dark like night in day and

Have you seen the solar eclipse?When the Moon covers Sun, it will become dark like night in day and

What do you think temperature is?Hot?Cold?What does it mean to be hot or cold?Why is it hot in the s

*** Support is only provided for the iPhone5/iPad2 and higher versions.Gravity, the force that creat

You Know Gravity? It Attracts You! - Lite*** Support is only provided for the iPhone5/iPad2 and high

You Know Moon Phase? Feel the Angle! - LiteMom~ Dad~ Why does the Moon’s shape keep changing?How wou

2015, 2016 Korea e-Book Award Excellence Award2016 Korea Astronomy and Space Science Institute Star

Have you seen the solar eclipse?When the Moon covers Sun, it will become dark like night in day and

Have you seen the solar eclipse?When the Moon covers Sun, it will become dark like night in day and