The Parker Solar spacecraft, which can reach speeds of 532,000 km/h, is the fastest man-made object, but still very slow compared to celestial bodies.
According to current human knowledge, the fastest things in the universe are photons of lightfollowed by subatomic particles when in particle accelerators or high-energy astronomical events. However, they are too small to be observed. Instead, searching for objects that are fast enough and large enough to see with the naked eye may be more interesting, IFL Sciences On April 20, it was reported.
Illustration of a pulsar, one of the fastest rotating objects in the universe.
Illustration of a pulsar, one of the fastest rotating objects in the universe. (Photo: SA/JPL-Ϲaltech)
The universe is expanding. It means everything is collapsing. The further away the object is, the faster it moves away. Therefore, for humans, the fastest moving object in the universe may also be the farthest object. But this record is constantly broken, especially when new tools such as the James Webb Space Telescope appear. Since last year when it started operating, James Webb eyewear has discovered a number of“new candidate” for the title of the most distant galaxy and there are sure to be always more such candidates.
However, for all the inhabitants (if any) living in the galaxies themselves, they are not fast moving. They will only see very distant galaxies moving, the galaxy they live in seems motionless, and nearby galaxies move only very slowly. For simplicity, the search for the fastest object large enough to be seen with the naked eye will be limited to objects moving faster than nearby objects.
Ѕthe fastest product of mankind, Parker Solar spacecraft, reaching a speed of 532,000 km/h relative to the Sun and should fly 30% faster if all goes well. However, this rate remains extremely slow compared to the speed at which some planets orbit their host star. For example, SWIFT J1756.9-2508bthe object is probably a exoplanets, orbiting stars in less than an hour. This means that its average speed is about 766 km per second, or about 0.2% of the speed of light.
Orbiting black holes can reach much faster speeds, but scientists usually only detect them from gravitational waves after they merge. An exception concerns the two black holes of the galaxy ƤKS 2131-021. Currently, they take another two years to get into orbit, but the process is accelerating.
Given the linear motion, some stars are kicked out of the galaxy by being too close to a supernova or being part of a galaxy. “gravity dance” Three ways. Of these, the fastest star known to science is moving at a speed of nearly 1,000 km per second relative to the galaxy.
However, all of the objects that experts have discovered of this type are very far from Earth, which means that they have only observed very large and bright objects. It is possible that fainter stars, even planets, are similarly ejected and move much faster due to the same repulsion despite having less mass.
Another remarkable object is PSR J1748-2446ad – the pulsar which rotates 716 times per second is located in the globular cluster Terzan 5. This pulsar has an estimated radius of 16 km. This means that its equator is moving at around 70,000 km per second, or 24% of the speed of light, an impressive number.
Article source: VnExpress
If there is anything wrong with the List of Fastest Objects in the Universe item, please contact us so we can fix it.
Keyword:
The Parker Solar spacecraft, which can reach speeds of 532,000 km/h, is the fastest man-made object, but still very slow compared to celestial bodies.
