Eclipses and the nature of Gravity
In March 2015 there was an eclipse of the Sun.\xa0Those who saw the total eclipse from the North Atlantic witnessed one of the most awesome sights\xa0imaginable. From more southerly locations we saw a partial eclipse, and in Cardiff we were joined by over 1000 people on the steps of the National Museum of Wales.\nBut eclipses aren\u2019t just a pretty sight, and they can be used for scientific purposes. As well as showing us the outer atmosphere of the Sun, they\xa0are also able to tell us about the fabric\xa0of the Universe itself.\xa0This month, I spoke to Mark Hannam, a researcher here in Cardiff, about what eclipses have taught us\xa0about gravity, and what we\u2019re still learning today. You can also read Mark\u2019s blog post about some of the concepts involved.\n Read more