Astronomers have discovered an Earth-sized planet believed to be volcanically active outside the solar system. In this respect informs NASA.
Planet LP 791-18 d orbits a red dwarf about 90 light-years from Earth in the southern constellation of Chalice. According to experts, this planet is only slightly larger and more massive than Earth, and it’s also tidal capture – so one side is facing the star. The discovery was made by analyzing data from TESS, Spitzer and a number of ground-based observatories.
Due to tidal trapping, the daytime side of the planet is likely to be very hot, and liquid water is unlikely to be found on it. However, analyzes show that LP 791-18 d regularly passes by a much larger exoplanet, LP 791-18 s, as it orbits the star. The gravitational interaction of the planets causes the orbit of planet d to stretch into an ellipse, so its interior heats up under the influence of tidal forces. Tidal warming likely causes regular volcanic eruptions, similar to what happens on Io and other moons of the solar system’s giant planets. The explosion is likely to release gases that can create an atmosphere at a pressure suitable for the presence of liquid water on the night side.
Formerly paleontologists saidwhere live “bagels” live obama 550 million years old.