American scientists will announce a major discovery of gravitational waves
Release Time:
2016-02-16 17:49
Source:
The image shows the microwave background radiation map drawn by the Planck satellite survey of the European Space Agency, and we may have already heard the "echo" of the Big Bang.
Tencent Science News (Luo Ji/translated) According to foreign media reports, gravitational waves are a special "ripple in spacetime" in the universe, because we imagine gravitational waves as tiny fluctuations in spacetime. Scientists have been searching for traces of gravitational waves. Gravitational waves can be formed in celestial collision events or originate from the Big Bang. Now scientists may have detected evidence of gravitational waves for the first time, thus unveiling the mystery of the birth of the universe. Scientists involved in this research stated that this major announcement will be made on March 17 local time at the Harvard-Smithsonian Center for Astrophysics. If the detection of gravitational waves is confirmed, it will almost certainly be the next Nobel Prize.
Currently, the discovery of gravitational waves remains confidential, and the outside world cannot know exactly what clues related to gravitational waves scientists have found. The latest predictions indicate that scientists may have found direct evidence of gravitational waves, related to the birth of the universe 13.7 billion years ago. After the universe was born, powerful gravitational wave events were formed, but as the universe rapidly expanded, gravitational waves were gradually weakened. These primordial gravitational waves are like the "echo" of the Big Bang. If the universe has a beginning, then gravitational waves are proof.
The discovery of gravitational waves allows scientists to "see" for the first time how the universe was born. As early as Einstein's era, general relativity predicted the existence of gravitational waves. Gravitational waves are like tiny ripples in the fabric of spacetime, carrying a certain amount of energy. Their main origins are powerful celestial events in the universe, such as the Big Bang and black hole mergers. However, by the time gravitational waves reach the solar system, they are very weak. Previous detection precision was far from sufficient, so it was difficult to detect gravitational waves. To concretize gravitational waves, one can imagine them as ocean waves passing through the sea, while the Earth is on the other side of the ocean.
Scientists are expected to announce the discovery of gravitational waves on Monday local time. This will be an important moment in the history of cosmology because it hides the mystery of the Big Bang and relates to the beginning of the universe. The gravitational wave signal is said to come from the Bicep telescope located in Antarctica, a device capable of detecting gravitational waves. Other platforms studying gravitational waves include the ESA Planck satellite in orbit and telescopes in northern Chile.
Our universe's history is close to 14 billion years, and we do not fully understand the state of the universe at its birth. Scientists believe that it is precisely because of the existence of gravitational waves that the tiny spacetime ripples appearing in the early universe were amplified during the inflation period, forming the galaxies, stars, and planets we see today. The latest news states that the Harvard-Smithsonian Center for Astrophysics will announce this major discovery at 12 noon on March 17 (Monday) Eastern Time.
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