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Young stars love to destroy the planet's atmosphere, a new study suggests – BGR

New exoplanet finds have been fast moving in recent years, and when astronomers affirm the existence of another planet, there is always an immediate interest in whether that planet could support life. For many newly discovered worlds, the answer is a firm "no". They are either hot, too cold, or they are just big gas balls, but when a rocky world is discovered to be the right distance from its A new research article published in Astronomy and Astrophysics Letter explains how even some planets in The so-called "Goldilocks zone" of their parent stars can be sentenced to hard fate without the possibility of supporting life as we know. For a planet to support life as we know it on earth, it needs an atmosphere of some kind. Many young planets are believed to form atmospheres early, which sounds like great news to anyone who hopes that mankind will find extraterrestrial life in the cosmos one day, but it is a little catch. Young planets are often in orbit around the young star, and scientists are now beginning to realize more than ever how difficult it is for a planet to hang on to its atmosphere before an active young star. In the paper it is explained that abundant M-dwarf stars that are considered the most abundant in our neck in the forest can make life very difficult for the planets that orbit them. Unlike stars like our own Sun, M dwarf stars go through particularly active streaks at a…

New exoplanet finds have been fast moving in recent years, and when astronomers affirm the existence of another planet, there is always an immediate interest in whether that planet could support life. For many newly discovered worlds, the answer is a firm “no”. They are either hot, too cold, or they are just big gas balls, but when a rocky world is discovered to be the right distance from its

A new research article published in Astronomy and Astrophysics Letter explains how even some planets in The so-called “Goldilocks zone” of their parent stars can be sentenced to hard fate without the possibility of supporting life as we know.

For a planet to support life as we know it on earth, it needs an atmosphere of some kind. Many young planets are believed to form atmospheres early, which sounds like great news to anyone who hopes that mankind will find extraterrestrial life in the cosmos one day, but it is a little catch.

Young planets are often in orbit around the young star, and scientists are now beginning to realize more than ever how difficult it is for a planet to hang on to its atmosphere before an active young star.

In the paper it is explained that abundant M-dwarf stars that are considered the most abundant in our neck in the forest can make life very difficult for the planets that orbit them. Unlike stars like our own Sun, M dwarf stars go through particularly active streaks at a young age, spearing elevated amounts of X-ray and ultraviolet radiation for billions of years.

It is the radiation that can quickly remove an adjacent planet from its atmosphere. In fact, even a planet with an earth-like atmosphere can completely lose it within a million years if it revolves around a particularly active young star. This is not good for foreign hunters, but it tells us a lot about how unique the earth really is and it can help to limit our search to extraterrestrial life in the future.

Image source: ESO / M. Kornmesser


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