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1.76 billion light years away, two black holes smashed into one another, bearing one huge black hole the size of 53 suns. The explosion from this merger created enormous distortions in spacetime, known as gravitational waves. These gravitational ripples have been flying through the universe, and finally visited Earth.…

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“How moving!” is what the Earth would say when it comes into contact with gravitational waves. Albert Einstein’s general theory of relativity predicted these gravitational waves. These waves are disturbances in space caused by very massive objects and events. LIGO, (Laser Interferometer Gravitational-Wave…

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There is overwhelming evidence to support the existence of dark matter, but its existence is still a mystery to physicists. A method called Indirect detection remains one of our best hopes for experimentally detecting particles of the elusive Dark Matter (DM). The idea behind indirect detection is that dark matter…

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Our Sun is the nearest star to us. We have worshipped it, bathed in its light, and, of course, studied it. Scientists regularly use our Sun as a model for how similar stars should work. Thus, scientists develop the theory of stellar evolution (the study of the life cycles of stars) by observing our sun. Curiously,…

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Have you ever thought about why is it possible to understand the universe and why are we even here to understand it? Sarah Imari Walker thinks about this question in her philosophical essay entitled “The Descent of Math.” We can make sense of the world via descriptive tools such as mathematics and we can learn how…

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Radio astronomers working with a radio dish telescope detected something a bit unusual. They were seeing a very fast radio burst, faster and more irregular than any signal in the history of radio astronomy. This radio burst was coming at very short time scales, lasting just a few milliseconds. The signal was irregular,…

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Large stars and planets in space have intense gravity. The gravity of these large celestial bodies is so strong, that they actually warp the empty space around them. Also, in space, time progresses differently when near celestial bodies. Because of these effects on space and time, space is regarded as a space-time…