Science

NASA spacesuit leaks again, how dangerous is it? There have been astronauts who nearly drowned
In our impression, the United States seems to spend money "big", to complete the Apollo manned lunar landing program, almost all the country's efforts, huge human, material, and financial resources, and finally, in 1969 the first manned lunar landing was completed. After the manned lunar landing program, the United States also manufactured a reusable space shuttle. It seems that the financial strength of the United States, but sometimes also to repair, a device with decades, for example, the United States is now using the spacesuit has been more than 40 years.
By Deljewitzki3 years ago in Earth
Revealing the genesis of the eastern margin of the Tibetan Plateau
As the "roof of the world", the formation and evolution of the Qinghai-Tibet Plateau, especially the internal crustal deformation, thickening and uplift, and outward expansion, are the main focus of research in the field of earth sciences. For the special geological phenomena on the eastern edge of the Tibetan Plateau, such as large-scale slip faulting, significant crustal thickening, and lack of Cenozoic crustal shortening, three classical geological models have been proposed, namely, rigid block extrusion, continuous lithosphere-scale deformation, and large-scale middle and lower crustal flow. Among them, the large-scale (>1000 km) middle and lower crustal flow has received wide attention and support from many scholars in the last 20 years. This model suggests that the crustal thickening at the eastern margin of the Tibetan Plateau is caused by the eastward flow of crustal material from the interior of the Tibetan Plateau (the North Tangential Massif) at a depth of 25-40 km to join the eastern margin of the Tibetan Plateau. Geophysical observations show that there is an extensive low-velocity, a high-conductivity layer at the eastern margin and interior of the Tibetan Plateau that supports the flow of middle and lower crustal material that can occur. However, some scholars have questioned this, arguing that the model lacks geological evidence and that some recent findings do not seem to support the existence of such large-scale crustal flows.
By Monu Ella3 years ago in Earth
Polio making a comeback?
In July, a 20-year-old man in Dockland County, N.Y., was diagnosed with polio, a highly contagious, disabling, and potentially fatal disease caused by the polio virus (hereafter referred to as polio).
By Mao Jiao Li3 years ago in Earth
One third of the Earth is made up of liquid water
To gain a deeper understanding of the universe and find a future second home for humanity, scientists have been exploring a wide variety of celestial bodies, using ground-based and space-based equipment such as the Hubble Telescope and the Chinese FAST eye to make discoveries.
By Many A-Sun3 years ago in Earth
A most mysterious place, but also a place you can never know, at the same time!
Einstein's general theory of relativity is like a magnificent palace that looks imposing. He summarized the universal laws of the universe with only a few simple assumptions. For example, the bending of light has been measured and is almost identical to the calculations given by general relativity. The cosmic microwave background radiation also verifies the Big Bang. With the intervention of the cosmological constant, the accelerated expansion of the universe has also been rationalized. Einstein's theory of relativity has a nearly perfect explanation for the macroscopic universe. But as we mentioned earlier, general relativity explains the general laws of the universe, but the universe is not only general, it has many dualities. Today, let's talk about the ultimate mystery that haunted Einstein's like - black holes.
By Fei Fei3 years ago in Earth
The Earth has high mountains and deep oceans, so why do scientists still say that the Earth is a near-perfect sphere?
That the Earth is round is a scientific truism known to modern humans. So how round is the Earth? The answer given by scientists is: The Earth is very round and can be described as a nearly perfect sphere.
By Salolaherty3 years ago in Earth
We're having summer while the earth is far from the sun? Isn't it supposed to get colder the farther away you are?
The Earth is always revolving around the Sun. Because the Earth's orbit is elliptical, the distance between the Earth and the Sun is not constant. Sometimes the Earth is farther from the sun, sometimes it is closer.
By Milton Braganza3 years ago in Earth
The Andromedans “one of thousands of extraterrestrial races in existence,”
I recently saw a post on UFOs Online on this subject and would like to comment and share it with everyone here on Vocal.com.
By Georgenes Medeiros3 years ago in Earth
Scientists know how plasma blasts through neutron stars' crazy magnetic fields
New calculations by physicists give us a better understanding of how matter falls on a neutron star to fire off a powerful blast of X-rays.
By daron mychal3 years ago in Earth
Russia is planning to launch a nuclear-powered spacecraft to Jupiter
Russia plans to launch a nuclear-powered spacecraft to the moon, Venus and Jupiter. Roscosmos announced Saturday that its "space tug," a term for a spacecraft that transports astronauts or equipment from one orbit to another, is scheduled to launch in 2030.
By daron mychal3 years ago in Earth
Volcanoes may be hidden deep within Europa, raising chances of it hosting alien life
Jupiter's icy moon Europa is increasingly becoming the best place in the solar system to search for alien life. New models suggest that the rocky mantle beneath thick ice and the Aral Sea may actually be hot enough for volcanism. And, likely for most of its 4.5 billion-year lifespan.
By suzanne darlene3 years ago in Earth
NASA has set up two missions to explore whether life could exist on Venus
NASA has selected two missions called DAVINCI+ and VERITAS to study the "lost habitable" world of Venus. Each mission will receive about $500 million in development funding, and both are expected to launch spacecraft between 2028 and 2030.
By suzanne darlene3 years ago in Earth