NASA is studying a red dwarf star named TRAPPIST-1, home to the largest group of planets ever found in a single solar system. TRAPPIST-1 is about 40 light-years away and the seven rocky planets are an excellent example of the various planetary systems in the universe. This week, a new study was published showing that all the planets in the galaxy have significant similarities.
NASA scientists believe that similar dens may contain roughly the same proportions of matter, including iron, oxygen, magnesium, and silicon. NASA notes that if that theory is correct, the rates will vary significantly from Earth. Tropist-1 planets have approximately eight percent less ensembles than they would if they had a disguise similar to our Earth.
This finding has led to several hypotheses about the composition of the raw materials that could make planets. Some of the planets orbiting TRAPPIST-1 have been discovered by NASA Transit Asteroids and Planetary Small Telescope or TRAPPIST since 2016. NASA made observations using the retired Spitzer Space Telescope and the ground telescope.
Spitzer observed more than 1,000 hours before removing it in January 2020. NASA has used many tools to study the planetary system, including Hubble and Kepler. By all scientific tests, NASA believed that the densities of the seven planets Tropist-1 did not change by more than three percent.
The difference between those planets and the Earth is about eight percent, which is said to be significant on a planetary scale. TRAPPIST-1 planets may have lower levels of iron ions, but the study found that 21 percent of the planet has about 21 percent less. The study theorizes that planets may not have an iron core. NASA acknowledges that the answer may be a combination of both, including oxidized iron.