Astronomers searching for clues about dark energy, the mysterious force that is speeding up the expansion of the Universe, have uncovered new evidence about the nature of supernovae, finding many are lighter than scientists had expected,

 A team led by astronomers at the Australian National University (ANU) has discovered the oldest known star in the Universe, which formed shortly after the Big Bang 13.7 billion years ago,

 VietNamNet Bridge - The people in Vietnam will observe a total of 18 exotic astronomical phenomena in 2014, according to the Vietnam Young Astronomers’ Association (VACA), as follow:

VietNamNet Bridge - Vietnam and many countries around the world will see the partial lunar eclipse on the early morning of April 26.

 Astronomers on Wednesday said they had found possibly the biggest black hole ever observed, a leviathan with a mass 17 billion times that of the Sun, brooding at the heart of a distant galaxy.