On this day in physics: 29 March 2010- The particle accelerator CERN officially went online, a year and a half late. [Source]
Word of the Day- Gravitational Lensing is a phenomenon which involves light from very far away and very massive galaxies. When a galaxy emits light which passes close to a very massive object like a star or a black hole, it can bend the light such that the galaxy can be behind the galaxy and appear as one or multiple galaxies to the side of the massive object. In 2011 an astronomy pic of the day featured a star which warped the light from a galaxy creating a gravitational lensing mirage. Check it out here.
Question of the Day- Do heavier objects fall more slowly than lighter objects?
Keywords: Gravitational Lensing, Mirage
