More than 5,000 new worlds have been discovered outside our Solar System

2022-08-01 0 By

Scientists discovered the first exoplanet in the 1990s.As of 2022, the total number of confirmed exoplanets is just over 5,000.The number of wondrous “new worlds” outside our solar system has reached 5,000.NASA announced Friday that 65 new exoplanets have been added to its exoplanet Archive, bringing the total number of discovered exoplanets to 5,000.”It’s not just a number,” Jesse Christiansen, a scientist at NASA’s Exoplanet Archive Science Institute at the California Institute of Technology, said in a statement. “Each one of them is a new world, a whole new planet.I’m excited about each one because we don’t know anything about them.”The more than 5,000 planets discovered so far include small rocky worlds like Earth;Gas giants many times larger than Jupiter;And “hot Jupiters” in extremely close orbits around their stars.There are super-Earths, rocky planets larger than Earth;There are also “mini-Neptunes,” smaller versions of Neptune.In addition, scientists have found planets orbiting more than one star, and even some that “stubbornly” orbit the remains of a “death star” known as a White Dwarf.Of the exoplanets identified so far, 30 percent are gas giants, 31 percent are super-Earths, and 35 percent are Neptune-like.Only 4% are Earth-like or rocky planets with masses similar to those of Earth or Mars.Humanity is currently living in a golden age of exoplanet discovery.Although exoplanets have been proposed and described in science fiction before, these exoworlds were first discovered only in the 1990s.In January 1992, two cosmic objects changed our Galaxy forever.For the first time, we have confirmed hard evidence of two extrasolar planets, named Poltergeist and Phobetor, orbiting a pulsar 2,300 light-years away.”If planets can be found around neutron stars, planets should be pretty much everywhere,” said Alexander Walshzan, a professor at the University of Pennsylvania who discovered the two planets.More than 30 years on, that number has exploded.Walshzan thinks we’re doing more than just adding new planets to the list, but beginning an era of discovery.The new findings, announced on Thursday, mark the confirmation of 5,005 exoplanets, each with its own unique characteristics, a major milestone in the exploration of the universe.Speaking about the possibility of alien life, Walshzan said: “It seems to me that it’s inevitable that we’re going to find some kind of life somewhere, probably some kind of primitive life.”He added that the close link between the chemistry of life on Earth and chemistry found throughout the universe, as well as the detection of a wide range of organic molecules, suggests it is only a matter of time before alien life is found.Every exoplanet discovered now appears in peer-reviewed studies, and scientists have observed it using a variety of detection techniques or analysis methods, according to the report.The use of new instruments, such as the recently launched James Webb Space Telescope and the upcoming Nancy Grace Roman Space Telescope, could provide a wealth of information for follow-up studies to learn more about these “new worlds”.