Evolution of The Universe

Warp Drive This blog explains Ward Drive in Hindi and answers questions like, What is Warp Drive, How it works? What are the limitations of Warp Drives etc. Warp drive is a faster-than-light (FTL) spacecraft propulsion system in many science fiction works, most notably Star Trek. A spacecraft equipped with a warp drive may travel at speeds greater than that of light by many orders of magnitude. In contrast to other FTL technologies such as a jump drive or hyper drive, the warp drive does not permit instantaneous travel between two points but involves a measurable passage of time which is pertinent to the concept. Spacecraft at warp velocity theoretically continue to interact with objects in "normal space". The general concept of "warp drive" was introduced by John W. Campbell in his 1931 novel Islands of Space. Einstein's theory of special relativity states that energy and mass are interchangeable, thus, speed of light travel is impossible for mate

James Webb Space Telescope The James Webb Space Telescope (JWST), previously known as Next Generation Space Telescope (NGST), is a part of NASA's ongoing Flagship Program which has developed in cooperation with the European Space Agency and Canadian Space Agency. The space telescope is under construction and scheduled to launch in October 2018. JWST will offer unprecedented resolution and sensitivity from long-wavelength (orange-red) visible light, through near-infrared to the mid-infrared (0.6 to 27 micrometers). While the Hubble Space Telescope has a 2.4-meter (7.9 ft) mirror, the JWST features a larger and segmented 6.5-meter-diameter (21 ft 4 in) primary mirror and will be located near the Earth–Sun L2 point. A large sunshield will keep its mirror and four science instruments below 50 K (−220 °C; −370 °F). JWST's capabilities will enable a broad range of investigations across the fields of astronomy and cosmology.[5] One particular goal involves observing some o

Where is the Centre of Universe Where is the Centre of Universe? What Lies in the centre of the Universe? Case 1: The Observable Universe We are, by definition, at the very center of our observable universe. However, an alien species on a planet one billion light years away from us is at the center of their observable universe, which is very different from ours. Wherever you go, you will be at the center of your observable universe, because the observable universe is the part of the universe that you can see, and the light from all the stars and galaxies on the edge of the observable universe takes the same time to get to you, no matter which direction it came from. So you can imagine the observable universe as a sphere (or ball) that is centered on you and follows you wherever you go. However, there is nothing special about you specifically; anyone else in the universe experiences the same thing. Case 2: The Entire Universe It should be stressed that in contrast to the obs

Did The Big Bang Really Happen If you are asking questions like, Was Big Bang Real? Is Big bang just a story? What proofs do we have about the Big Bang? etc, then this is the video you are looking for. This blog explains it. The Big Bang Theory is the leading explanation about how the universe began. At its simplest, it says the universe as we know it started with a small singularity, then inflated over the next 13.8 billion years to the cosmos that we know today. Because current instruments don't allow astronomers to peer back at the universe's birth, much of what we understand about the Big Bang Theory comes from mathematical formulas and models. Astronomers can, however, see the "echo" of the expansion through a phenomenon known as the cosmic microwave background. While the majority of the astronomical community accepts the theory, there are some theorists who have alternative explanations besides the Big Bang — such as eternal inflation or an oscill

Gravitational Waves & LIGO This blog explains Gravitational Waves in Hindi language. It also explains LIGO in Hindi as well as How LIGO observatory Works. What are gravitational waves? Put simply, gravitational waves are ripples in the otherwise tough, stiff fabric of spacetime produced by the most violent phenomena the cosmos can offer—things like exploding stars and collisions between ultradense neutron stars or merging black holes. Gravitational waves are washing over Earth all the time, but our instruments have not been sensitive enough to detect them until very recently. Who first came up with the idea of gravitational waves? In 1916, Albert Einstein suggested that gravitational waves could be a natural outcome of his general theory of relativity, which says that very massive objects distort the fabric of time and space—an effect we perceive as gravity. Accordingly, very massive objects spiraling toward each other should wrinkle space-time and send those distorti

 Oumuamua  - Solar System's First Interstellar Visitor ʻOumuamua is the first known interstellar object to pass through the Solar System. Formally designated 1I/2017 U1, it was discovered by Robert Weryk using the Pan-STARRS telescope at Haleakala Observatory, Hawaii, on 19 October 2017, 40 days after it passed its closest point to the Sun. When first seen, it was about 33,000,000 km (21,000,000 mi; 0.22 AU) from Earth (about 85 times as far away as the Moon), and already heading away from the Sun. Initially assumed to be a comet, it was reclassified as an asteroid a week later, and finally (6 November 2017) as the first of the new class of interstellar object. ʻOumuamua is a small object, estimated to be about 230 by 35 meters (800 ft × 100 ft) in size. It has a dark red color, similar to objects in the outer Solar System. ʻOumuamua showed no signs of a comet tail despite its close approach to the Sun, and has significant elongation and rotation rate, so it is though