Chapter 201: Neighbors

Time flies, and the third day has arrived. Hua Feng discovered that astronomers at the time had discovered a rocky spherical planet with a mass 4 times that of Earth, and it was the closest potentially habitable planet ever discovered outside the solar system, only 14 light-years away from Earth.

The "super-Earth" planet, named Wolf 1061c, was discovered by Australian astronomers, along with two planets orbiting a red dwarf star called Wolf 1061. The study lead, Duncan Wright of the University of New South Wales, Du

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"This is a very exciting discovery! 3 low-mass planets are probably rocky planets with solid surfaces," Dr. IGHT said. ”

Wolfe 1061c is located in the middle of the planet's orbit, in a stellar habitable zone, where liquid water and even life may be present. The discovery is significant, as the red dwarf star Wolf 1061 is so close to us that it contains a habitable planet. Although astronomers have found some planets in star systems closer than Wolf 1061, these planets are not suitable for life.

The three newly discovered planets (orbited from the inside to the outside) orbit the red dwarf star Wolf 1061 with an orbital period of 5, 18 and 67 days, respectively, a small, relatively low temperature stable star with a mass of 1.4, 4.3 and 5.2 times that of Earth, respectively.

Wolf 1061c is located on the edge of the habitable zone, but it is likely to be a rocky planet, in contrast to another smaller planet closer to the main star that is too close to the star to survive life. Co-author Rob Witte

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Dr. stressed that the close proximity of the three planets around the host star means that they are likely to cross the "stellar face", and if so, future studies of their atmospheres will provide insight into whether they are conducive to the survival of life.

It is reported that the "big cousin" of this earth is orbiting a red dwarf star, which is named GJ 536 b. The Great Cousin is 5.4 times the mass of the Earth and is only 32.7 light-years away from the Earth!Jonah Issa Gonzarez points out that GJ 536 b orbits a smaller and cooler host star, but it is very close to the host star and very bright.

On November 22, according to the British Daily Mail, scientists recently discovered a "super Earth", only 32.7 light years away from the Earth, and the Earth's "big cousin" is orbiting a red dwarf star, named GJ 536 b. Once terrestrial planets are discovered, it will definitely return to the question of whether there is life or not, so is there life on this super-Earth?

Xinhua News Agency, Beijing, Feb. 16 (Xinhua) -- A team of international astronomers has discovered 60 new planets orbiting a star system near the solar system, including a "super-Earth" with a rocky surface, according to US media.

Fox News reported on February 14 that experts have found evidence of the existence of another 54 planets, bringing the number of potential "new worlds" discovered to 114.

One of the planets called "Gliese 411b" has attracted a lot of attention. According to the University of Hertfordshire in the United Kingdom, which participated in the study, Gliese 411b is described as a "hot, red-hot superEarth with a rocky surface", which is located in the fourth-closest star system to the Sun, making it the third-closest planetary system to the Sun. Gliese 411b orbits the star Gliese 411.

Miko Tuomi of the university's Center for Astrophysics said in an interview with this website that despite its "super-Earth" moniker, Gliese 411b is too hot for life to survive on its surface.

Gliese 411 and Gliese 411b are located 8 light-years from Earth.

By comparison, Proxima B, the recently discovered terrestrial planet Proxima Centauri orbiting the red dwarf star Proxima Centauri, is about 4 light-years away from Earth. Red dwarfs are smaller, colder stars.

The British journal "Nature" and the American space network jointly announced on April 19 that a rocky planet with moderate temperature underwent a transit when passing a small star. The newly discovered "super-Earth's" proximity to the host star, the rock composition, and the possibility of liquid water make it the best option for finding extraterrestrial life at the moment.

Over the past 20 years, thousands of exoplanets have been discovered, but the vast majority do not qualify as "super-Earths": either too hot or too cold, or unable to have a natural environment like Earth. The TRAPPIST-1 system, which was previously a smash hit and is thought to have seven terrestrial planets, has been shown to be exposed to frequent and intense radiation, making it difficult for primitive life to gain a foothold, and that one of them is not a rocky planet like Earth.

This time, Jason Dietman, an astronomer at the Harvard-Smithsonian Center for Astrophysics in the United States, and his colleagues reported that they passed the "MEa

The th-south telescope array has observed an M-type dwarf star called LHS 1140. This is a common star type in the Milky Way, which is about 39 light-years away from the Sun and has less than 60% of the Sun's mass. The team further discovered that the planet LHS 1140b transits as it passed through LHS 1140, and that its circular orbit may have existed at the time of its formation.

Next, they used 144 radial velocity measurements to accurately determine the planet's radius (1.4 times that of Earth), mass (6.6 times that of Earth), and density, and determined that it was made of rock. Moreover, the planet has mild "sunshine" and low radiation from the host star, and is located in the "habitable zone" of the host star, where water can be found on the planet's surface in liquid form. Scientists believe that liquid water is an indispensable element for the survival of life.

Dittman said the star is the most exciting exoplanet he's seen in the last 10 years, and the next step is to use the Hubble telescope to collect data on its atmosphere.

In January 2019, researchers discovered that a giant "super-Earth" planet 6 light-years away could harbor simple life. Ba

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d b (or GJ 699 b) is the most recently discovered "super-Earth" planet orbiting Barnard, the second closest star to Earth. Ba

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d b is thought to be extremely cold, with a temperature similar to Europa, about -150 degrees Celsius.

It is not uncommon for the European Space Agency's Herschel Space Telescope to discover a large cluster of small bodies (comets) on the outer periphery of another star system, and earlier in 2013 it also made observations of the famous North Faller star system. Using infrared observation techniques that can see through the thick dust disk on the periphery, astronomers can estimate how many comets in the star system have been destroyed after entering the inner orbit.

Scientists have also hypothesized the collision of planets orbiting in the star system with comets, and these models have concluded that there are 260 billion to 83 trillion small comets in the thick disc-shaped material belt around the North Fall, and that the number of comets in the Oort cloud at the outer reaches of the solar system is thought to be similar. This observation also speculates that planets have evolved out of the ocean, expanding the habitability and potential habitability of terrestrial planets.

In star systems lacking massive gaseous planets, such as Saturn and Jupiter, planets in inner orbits are protected from massive comet bombardments, while smaller Neptune-like objects allow small meteor showers to keep planets in inner orbit stable. Because of this, the Gliese 581 and Virgo 61 star systems are under long-term "siege" by a large number of small comets in the outer discoid mass group. Considering that the Gliese 581 star system has evolved for nearly 2 billion years, the planets in inner orbit may contain considerable reserves of "water resources".

The size is right, the location is appropriate", the Associated Press said in an article on the 19th that the Kepler-62 planetary system is about 1,200 light-years away from the Earth and is located in the constellation Lyra. In this system, five planets orbit a star that is smaller, colder, and older than the Sun, with Kepler-62e and Kepler-62f being the outermost ones, which are 1.6 and 1.4 times the size of the Earth, respectively, and receive only 1.2 and 0.4 times the thermal radiation of the Earth, with orbital periods of 122 and 267 days, respectively.

Scientists at Germany's Max Planck Institute for Astronomy say Kepler-62e's temperature "could be like Washington in May." The researchers speculate that the two planets are mainly made of rock or ice, and it will only be clear if the relevant atmospheric spectral properties are obtained, and whether they are really "habitable" and "if there is life on them, it must be very advanced".

Another "new Earth", Kepler-69c, is located in the Kepler-69 planetary system, in the constellation Cygnus, about 2,700 light-years from Earth, 1.7 times the volume of Earth, with an orbital period of 242 days, and its composition is uncertain. In addition to this, the remaining 4 planets of these two planetary systems only have a rotation period of just over ten days, which means that they are very hot and unsuitable for human survival.

The European Southern Observatory announced on June 26, 2013 that the latest research by German scientists has found that there are three "super-Earths" suitable for life near the solar system, and there may be extraterrestrial life. The three planets orbit a star in the constellation Scorpio, just 22 light-years from Earth. According to astronomical units, it can be said that it is a neighbor with the earth.