LHS 1140 b Distance, Temperature, Gravity: What we know about an Earth-like place that has atmosphere, rocks
Astronomers have made a groundbreaking discovery with LHS 1140 b, a rocky exoplanet located about 48 light-years away in the constellation Cetus. This planet orbits within its star's habitable zone, where conditions may be suitable for liquid water. Researchers have confirmed the presence of an atmosphere, detecting helium in its upper layers, marking a significant milestone in the search for life beyond Earth. This finding is particularly exciting as it is the first confirmation of an atmosphere on a rocky planet in a habitable zone around another star. LHS 1140 b is approximately 5.6 times the mass of Earth but only 1.7 times its radius, resulting in a surface gravity estimated to be between 1.8 and 2.4 times that of Earth. While the average temperature is calculated to be around -47 degrees Celsius, the actual conditions may vary depending on the atmospheric composition, which scientists are still investigating. The presence of helium alone does not indicate the potential for life, but it opens the door to the possibility of other, more life-supporting gases existing closer to the surface. As the search for extraterrestrial life continues, LHS 1140 b joins a growing list of exoplanets under scrutiny. While it does not provide direct evidence of life, confirming an atmosphere on a rocky, temperate planet is a crucial step towards answering humanity's age-old question: are we alone in the universe?
Commenti