Every year on February 11, the United Nations observes the International Day of Women and Girls in Science. This year marks the 10th anniversary of the day, and the theme is ‘Unpacking STEM Careers: Her Voice in Science’.

Bharat Ratra

Bengaluru
29 Apr 2019

Nearly a century ago, Edwin Hubble, an American Astronomer, made the surprising observation that galaxies are moving apart, and that galaxies farther away from us are moving faster than nearby galaxies. With this, he showed us that the Universe is expanding. Towards the end of the last century, scientists discovered something even more surprising. When they more carefully studied how fast nearer and farther galaxies are moving away from us, they found that the Universe is not just expanding, but that the rate of expansion is increasing.