Scientists are hoping to discover exoplanets that can support life. For this, these worlds must have an atmosphere. A recent observation revealed what the researchers feared.
The observation of an exoplanet in a system about 48 light-years from Earth has confirmed what scientists fear. In fact, it is a large pebble that is very close to its star, a red dwarf type M. What is this discovery so special? This planet does not have an atmosphere.
The star of type M, the most common star of our galaxy, emits dangerous cosmic rays in very large quantities. Therefore, no atmosphere can survive. If a planet is far from its star, it does not get enough heat and becomes too cold to support life. From then on, astrophysicists wonder: will it be difficult, if not impossible, to find a habitable exoplanet near our world?
According to the conclusions drawn by the researchers, a planetary system orbiting a red dwarf would not be conducive to sustain life. The majority of the stars being near us are of this type. This probably means that, to find a world with an atmosphere and a surface temperature hot enough for the water to flow in large quantities, it will be necessary to travel further.
This is the case of LHS 3844 B which is 1.3 times the diameter of the Earth and orbits around its star in only half a terrestrial day. This telluric planet does not have an atmosphere.
Brook Bufphlin helped bring hw4all from a-weekly newsletter to a full-fledged news site by creating a new website and branding. She continues to assist in keeping the site responsive and well organized for the readers. As a contributor to hw4all, Brook mainly covers mobile news, marketing and industry updates.