All articles tagged with #earth 20
Scientists propose a novel rectangular space telescope design, modeled after the JWST, which could more feasibly detect Earth-like exoplanets within 30 light-years by using a 20-meter long mirror to improve resolution and potentially identify planets with signs of life, offering a promising alternative to traditional circular telescopes.
A super-Earth named Kepler-725c, located in the habitable zone of a sun-like star, was discovered using the Transit Timing Variation (TTV) technique, marking a significant advancement in detecting Earth-like planets and paving the way for future searches for 'Earth 2.0'.
Over the past 25 years, exoplanet research has evolved from knowing fewer than 30 exoplanets to over 5,000 today. Despite the significant increase in discoveries, finding an Earth-like planet remains elusive. The field has seen major milestones, such as the launch of the Kepler Space Telescope and the discovery of the Trappist-1 system. Future missions like the Nancy Grace Roman Space Observatory and the Ariel Space Mission aim to further our understanding of exoplanets and their potential to harbor life.
Scientists have discovered a planet, Kepler-442b, about 1,200 light-years away, which may be more habitable than Earth based on a new habitability index. This index takes into account various data, including transit data and stellar properties, to assess potential habitability. While Earth has a habitability rating of 0.829, Kepler-442b has a rating of 0.836, making it a promising candidate for potential habitability. However, uncertainties about its atmosphere and surface mean that its actual habitability is still uncertain. Additionally, Mars has been deemed unsafe for human habitation due to radiation threats, despite NASA's plans for human exploration.