Month: October 2023

This exoplanet might literally be the most metal planet out there

It’s likely that something stripped the outer layers off a once-rocky exoplanet.

Image of a dark, reddish orb on a black background.

Enlarge / Computer-generated conception of the hot, metal planet. (credit: NASA)

Metals are everywhere in the Universe, from hot gas giants where it rains molten iron to heavy elements formed as a star goes supernova. Exoplanet GJ 367b one-ups them all. This planet is made of metal.

GJ 367b is an extreme planet. This “super Mercury,” which orbits its star once every 7.7 hours, was first discovered by NASA’s TESS planet hunter in 2015. Now, scientists from the University of Turin in Italy and the Thüringer Landessternwarte in Germany have examined more recent measurements of the planet using ESO’s HARPS spectrograph along with the original TESS observations. They found that this object is almost twice as dense as Earth—which suggests it is most likely made of solid iron.

Even though GJ 367b is now a solid iron planet, it might have once been the core of an ancient rocky planet.

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(g+) Smoking Gun: Explodiert 5G von Huawei wie die Nord-Stream-Pipeline?

Das Bundesinnenministerium möchte chinesische Anbieter am liebsten weitestgehend vom 5G-Ausbau in Deutschland ausschließen. Unsere Analyse mit Argumentations- und Faktencheck, gestützt auf viele Branchen und Politikinsider, geht den Spionagevorwürfen a…

Das Bundesinnenministerium möchte chinesische Anbieter am liebsten weitestgehend vom 5G-Ausbau in Deutschland ausschließen. Unsere Analyse mit Argumentations- und Faktencheck, gestützt auf viele Branchen und Politikinsider, geht den Spionagevorwürfen auf den Grund. Eine Analyse von Achim Sawall (Spionage, Telekom)