Like a boat sailing on a calm sea or a stone dropped into a pond, objects in the universe with large amounts of mass, such as black holes, create ripples in space and time . These ripples could give us a glimpse into our past and lead to the discovery of many unsolved phenomena. But first scientists must find a way to monitor these waves and prove that they exist. Gravitational waves are defined by Dictionary.com as “a propagating wave of gravitational energy produced by accelerating masses, especially during catastrophic events.” This means that when two objects collide, pulses, or waves, of energy are produced. These energy waves are gravitational waves. Gravitational waves travel away from the source and can be produced by many different events. In Albert Einstein's theory of general relativity, we learn the theoretical prediction of gravitational waves. If gravitational waves could be detected as Einstein explains, we could easily have infinite knowledge of the history of our world. In Louisiana and Washington there are two observatories, the Laser Interferometer Gravitational Wave Observatory, nicknamed LIGO. The observatories were designed to detect black holes and the distortions of space and time that are created when they collide. LIGO has two L-shaped arms that extend about 4 miles each and have a mirror at each end. There's also a laser that continually bounces back and forth between the mirrors. If two black holes were to collide, it would create a ripple in space-time that would distort the length of the arm, causing the laser to take longer to pass between the mirrors. Scientists would be able to observe and record this to prove that Einstein was right and that gravitational waves exist. What is this... the center of the card... it's like the death of a star or something like that like an insect like the birth of the universe, anyway it helps us to know the past things and future things. We are fortunate to be born in this day and age where so much knowledge about our universe is emerging. It's crazy to think that something as simple as dropping a rock in a puddle could have the same effect as me, just like a black hole affects the entire universe. Gravitational waves are extremely important and without them we would never have the chance to know everything about our past. We can only hope that more research is done and that these gravitational waves are proven true and the knowledge we learn from them is made known to all. Works Cited http://www.space.com/17112-gravitational-waves-ligo -black-holes.htmlhttp://imagine.gsfc.nasa.gov/docs/features/topics/gwaves/gwaves.html