Colossal Structures Within the Earth, DARPA's New Deep-Space Network, and Genetically Engineered Fungi for Food

Colossal Structures Within the Earth, DARPA's New Deep-Space Network, and Genetically Engineered Fungi for Food

This week in news from The Debrief, researchers have uncovered new clues about two colossal, continent-sized structures buried 1,800 miles beneath Earth’s surface—anomalies once dismissed as “random oddities,” now believed to preserve chemical fingerprints from the planet’s earliest formation. Meanwhile, DARPA has launched TBD2, the first deep-space surveillance network designed to track tiny spacecraft millions of miles from Earth, marking a ma…

Constructing Earth Formation History Using Deep Mantle Noble Gas Reservoirs - Astrobiology

Noble gases are powerful probes of the Earth’s early history, as they are chemically inert. Neon isotopic ratios in deep mantle plumes suggest that nebular gases were incorporated into the Earth’s interior. This evidence implies the Earth’s formation began when there was still gas around, with Earth embryos accreting primordial gas and a fraction of […] The post Constructing Earth Formation History Using Deep Mantle Noble Gas Reservoirs appeared…