A team of scientists said that primitive life may exist on a large, rocky planet that is relatively close to Earth, presented at an astronomy conference last week.
The team says the planet – called Barnard b or GJ 699 b – may have microbes or other simple life in its environment before there are many thermal activities on the planet itself. This theoretically provides enough energy to save lives.
The exciting discovery is that the planet is only six light-years from Earth, making it one of the closest worlds to the solar system. Proxima Centauri is about four light-years away from another, presumably residential planet that is also under control. (Light is the light travel distance per year, or 5.88 trillion miles (9.5 trillion km).
The planet revolves around the star Bornard, a red dwarf star that is slightly smaller and cooler than our sun. Like many stars of its type, the Barnard star emits a lot of radiological and ultraviolet radiation, which can damage the life of the newborn on the planet. However, the planet is located behind the worst of the beam, which gives hope that life could really survive as long as it is difficult.
The planet is probably a super Earth, about three times the mass of our planet. Scientists suspect that a similar Earth has a large, hot iron core that has more geothermal energy. This geothermal energy can be heated by using suction or plum in the planet's environment, similar to the Earth's ocean environment – even in cold places, Antarctica.
In their presentation, the researchers jokingly compared the planet to Hot – the icy planet became famous in one of the "Star Wars" movies when the theft of Luke Skywalker (a fictional lizard species Tauntaun) was killed and he had to stay warm. Intestines.
But the challenge for the team is to prove life, there may be a newly discovered planet that was first published in November in a nature publication. There is still no telescope that will be powerful enough to revise the planet's atmosphere with biologically friendly molecules, such as oxygen or methane. At the very least, NASA will need to launch the James Webb Space Telescope, which should go into space no earlier than 2021. Or it may require an even more powerful telescope in the future.
"The image directly on the planet could tell you its exact brightness. We can gather more information about temperature and properties such as albedo [reflectivity]"- said Scott Engley, Universal Astrophysicist of Villanova, with Secret; He co-authored a study with Villanova and astrophysicist Edward Guinea. Gwynn gave Seeker a copy of the presentation.
Albedo is partially useful because it can alert astronomers if the surface is made of highly reflective materials, such as ice or less reflective materials, such as rock. Because life, as we know it, prefers water, on its surface the planet of water or water ice would be stronger for argumentation.
The study of life on other worlds is still in its infancy, and several spacecraft have been looking directly at life. NASA is working on a mission called the Europa Clipper, which is able to search for habitats on Jupiter's icy moon in Europe. Europe has a liquid ocean under its ice because the energetic energy from the powerful Jupiter expands the ocean from freezing.
"Getting more data would have a huge impact on Europe," Engle said. "Currently we have theories and examples of several oceans on Earth, such as Lake Vostok on Antarctica. Studies of icy moons that would have resembled the Holy Grail of a European clipper would eventually bring us closer to land borders with examples like Lake Vostok … it would be huge. "
As long as astronomers wait for this data to become available, they still have other ways to collect information; They will check the star wave if they can understand any more features about the planet, and search for any planetary satellite. The team will observe the variability in the light of the stars, to overcome the rotation of the stars and also to search for the points of the sun – just like in the sun.
They are also looking for alternative techniques to take pictures of the planet. They already have some early ideas. They may use a combination of Earth-based telescopes that work together as an interferometer, or they may use extremely sensitive adaptive optics that can help the telescope deform its mirror to maintain atmospheric turbulence, which spoils the sky.
Researchers presented their work at a press conference on January 10 at the 233rd meeting of the American Astronomical Society in Seattle.