• Why need a leap year?

    Why need a leap year?
    2016 is a leap year. February 29, 2016 will be another day to add to the calendar to help synchronize the rotation of the Earth around the sun and the true passage of seasons.
  • Seeing the 'fire ring' around the Sun

    Seeing the 'fire ring' around the Sun
    The phenomenon of the upper ring of fire is also known as the solar solar eclipse, which is Latin for 'circle', visible from various areas in Asia, the Pacific region and some in
  • Vietnam will watch an annular solar eclipse on May 21

    Vietnam will watch an annular solar eclipse on May 21
    Vietnamese astronomers have the opportunity to see a part of the solar eclipse - an astronomical phenomenon many people pay attention to take place in the morning of May 21.