US researchers identify protoplanet fragment in rare meteorite NWA 12774 (heise.de)

• Meteorite NWA 12774 is a fragment of a protoplanet from the early solar system.
• The rock formed under pressures exceeding 17,500 bar, requiring a parent body with radius >1800 km.
• The study was conducted by researchers at the University of Colorado Boulder and published in Earth and Planetary Science Letters.

"Researchers from the University of Colorado Boulder examined meteorite NWA 12774 and identified it as a fragment of a protoplanet. The parent body had a radius of at least 1000 km, likely over 1800 km, and formed a few million years after the solar system. The meteorite is an angrite, a rare volcanic rock that formed under extreme pressures exceeding 17,500 bar. The study was published in Earth and Planetary Science Letters."