Venus is more like the earth than people think
The Venus Express probe has detected several Earth-like features much more Earth-like than the previous conception of scientists, even the bolts that theoretically cannot.
Venus is the planet closest to the earth in terms of size, mass, distance and chemical composition. But while the earth is a paradise of life, Venus is described as a typical hell, with cloudy atmosphere composed of sulfuric acid, covering a hard, hot desert desert surface. to the point where it can melt lead.
The flight of the Venus Express that the European Space Agency launched in 2005 is now revealing to us how Venus has become a dead world, and yet it is still the same anyway. how.
Previous theories still claim that the clouds on Venus are similar to the blind clouds on earth, and do not emit lightning. However, Venus Express has detected " whistles " - low-frequency radio waves that last for a fraction of a second and are considered to be emitted by discharges.
" We see this as the first definitive evidence of the presence of lightning on Venus, " said researcher David Grinspoon. He also extrapolated that there are about 50 flashes born on this planet every second, about half of the earth.
Venus Express probe (Photo: uk2planets.org.uk)
It is lightning that changes the chemical composition of the earth - they produce ozone and components like nitrous oxide - so lightning conjecture researchers have the same effect on Venus.
Venus Express also found cloud vortices on the poles of Venus, similar to the vortices of clouds that appear on the two poles of the winter, although they are larger and more energetic. In addition, the flight also opens new light on the similarities between the two planets. For example, in the ancient past, Venus also had oceans, but its hot and dry surface did not allow water to exist.
Venus does not have a strong magnetic field like Earth, meaning that the sun can destroy water into hydrogen and oxygen, and then easily escape from the atmosphere. Scientists have seen hydrogen fly away from Venus, but now they also see oxygen separating.
" Understanding the rate of oxygen and hydrogen loss will help us rebuild how much water Venus has had in history. At least, it has evaporated an equal amount of water on our planet ," Grinspoon to speak.
Venus (Photo: Nasa)
T. An
- Overview of Venus
- NASA wants to bring people to Venus
- Polar regions are cooler than anywhere on Earth
- The ocean may exist on Venus on Earth about 700 million years ago
- Venus returns to the sky on the night of October 27
- 10 most interesting things about Venus
- Venus can stay?
- Plan to conquer human Venus
- The mystery of Venus
- Venus Experss are about to plunge into the Venusian atmosphere
- Why does life appear on Earth instead of Venus?
- Venus, Earth and Jupiter combine forces to cause the solar storm?