I Have a Store In the World of American Comics

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The orbit of Venus is larger than that of Mercury.

It appears to be twice as far from the Sun as Mercury is when taking its maximum elongation in the west (to the right of the sun) or east (to the left of the sun).

Venus is one of the brightest objects in the sky, and the best time to see it is probably when the sun is just below the horizon.

It must be noted that you must not look directly at the sun with your eyes. The sun sets and Venus sets later, when it is to the left of the sun; Venus rises first before the sun rises, when it is to the right of the sun.

You can easily spot Venus, which is bright and slightly yellow.

When Venus is in the shape of a large "crescent," it is best viewed with binoculars.

At this time, Venus is located between the maximum elongation point and the inferior conjunction. When the inferior conjunction Venus is between the earth and the sun, we cannot see it. Pay attention to adjusting the focal length of the telescope so that it can observe distant objects.

In a study published on September 14, 2020 in the journal Nature Astronomy, two telescopes in Hawaii and Chile have found possible signs of life in Venus' thick clouds -- the chemical signature of phosphine, which is a chemical signature of phosphine. A toxic gas on Earth that is only associated with life.

New findings in Venus' atmosphere suggest that microbes may be living in the greenhouse planet's sulfuric acid-laden clouds.

The study's authors and some outside experts say this is far from the first hard evidence that life exists on other planets.

Rather, they called it "an implication of the possibility [of the existence of life]" - although they all agreed that the finding did not satisfy the late Carl Sagan's claim that "particular conclusions require significant evidence" support", but they couldn't find a better explanation, either chemically or geologically.

A brief history of detection:

Venus is an inner planet. If you observe it with a telescope from the earth, you will find that it has a phase change.

Galileo's observation of this phenomenon is important evidence in favor of Copernicus' theory of the heliocentricity of the solar system.

In addition to the sun and the moon, Venus is the brightest star in the sky that can be seen by the naked eye. At its brightest, it reaches magnitude -4.4, which is 14 times brighter than the brightest star in the sky, Sirius.

Adjacent to Earth, Venus is about 4% smaller in diameter, 20% lighter in mass, and 10% less dense than Earth.

In theory, Venus has an iron-nickel core with a radius of about 3,100 kilometers, with a mantle in the middle and a shell outside.

Because it is very similar to the earth in terms of size, density, mass and appearance, it has the reputation of the "twin sister" of the earth.

Human space exploration of planets in the solar system first started from Venus. Since the 1960s, the former Soviet Union and the United States have devoted great enthusiasm and exploration competition to uncovering the secrets of Venus.

So far, more than 40 probes have been sent to or passed by Venus, and a large amount of scientific information about Venus has been obtained.

On August 27, 1962, the United States launched the "Marine 2" spacecraft, which reached the vicinity of Venus on December 14, 1962. Spaceborne microwave radiometers measure temperatures deep in the atmosphere, and infrared radiometers measure temperatures at cloud tops.

Magnetometer measurements show that Venus has a weak magnetic field and no radiation belts around it.

On June 12, 1967, the Soviet Union launched the "Venus" 4 spacecraft, which entered the atmosphere of Venus on October 18 of the same year.

The "Venus" 4's landing capsule is 1 meter in diameter and weighs 383 kilograms. The outer surface is covered with a thick high temperature resistant shell, and the design limit pressure is 25 atmospheres.

After the landing capsule enters the atmosphere, it deploys its parachute and slowly falls under the action of the parachute. The detection data is sent to the orbiting module in time, and then returns to the earth.

When the lander descended to a distance of 24.96 kilometers from the surface of Venus, the signal stopped transmitting. It is estimated that the lander was compressed by the high pressure of Venus.

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Chapter 220 Announcement of Transformers in action