Universe Archives - Page 2 of 3 -
Astronomy is full of astronomical numbers and if physics tells us anything it is that nothing is obvious. Astonishing facts about the universe are absolutely everywhere and you do not even have to go far from home to find some. Here is a list og 5 mind-blowing facts about the universe.
As crazy as it sounds, we’ve all kind of accepted the part of the Big Bang Theory that says the universe started as a single point around 13.8 billion years ago. The thing is – a lot of theoretical physicists aren’t enthralled with that idea, as a lot of widely-accepted general relativity equations start to break down as you approach the “singularity”.
Eventually, billions or even trillions of years from now, the universe is going to end. Astrophysicists don’t know exactly how the universe will end, but they have some ideas. A group from Munich called Kurzgesagt put together a video explaining the three most likely ways it could happen.
I saw this sweet little video by visual effects artist Lucas Green: “Space Suite”. He took NASA images from Cassini, Hubble, and more, applied a few simple 3-D tricks to them, and created something pretty dang amazing.
It’s all really …
Why does time only go in one direction? And why is the future so different from the past? They seem obvious questions, but they have troubled scientists for over a century. A new theory has proposed an answer — that time doesn’t run just one way, and that there is another universe, a mirror of ours, where time runs backwards.
Space is an absolutely crazy place. Most science fiction writers throw in a planet with two stars that looks vaguely like Southern California, and call it a day. But the cosmos is a lot stranger than we give it credit for.
A new study has revealed that gravity may have saved the universe from collapsing immediately after the Big Bang. Studies of the Higgs particle have suggested that the production of Higgs particles during the accelerating expansion of the very early universe (inflation) should have led to instability and collapse.
Though many physicists believe it’s possible that our universe is one of many in a multiverse, they struggle to find concrete evidence to back up that hypothesis.
At the upper levels of complexity, physics – even to physicists – seems to break down into what essentially comprises a lot of arm waving and confused looks. But that’s no reason to give up. As Richard Feynman once said, “it is my task to convince you not to turn away because you don’t understand it. You see my physics students don’t understand it. That is because I don’t understand it. Nobody does”.
Scientists may have uncovered some startling new information about dark matter and dark energy. They’ve discovered hints that dark matter is slowly being swallowed by dark energy that grows as it interacts with dark matter. This, in turn, is slowly the growth of structure in the cosmos.
At the present moment, the universe is readily approaching its 14 billionth birthday (current estimates put its age between 13.7 and 13.8 billion years old). In an interesting twist of fate, the laws that govern our universe make it possible for us to peer back at pivotal moments in its evolution, leading all the way back to the first epochs in history.