An article published in the journal “Science” reports the discovery of the exoplanet GJ 367 b, about the size of Mars, with a year lasting only eight hours. A team of researchers led by Kristine Lam and Szilárd Csizmadia of DLR, the German aerospace agency, used observations conducted by NASA’s TESS space telescope and follow-up detections conducted with the ESO’s 3.6-meter telescope in La Silla, Chile’s HARPS instrument to obtain information on GJ 367 b. You could say that it’s a super-Mercury since the two planets have a similar iron core but on the side of GJ 367 b facing its star, a red dwarf, the estimated temperature is about 1,500° Celsius.