https://www.nature.com/articles/s41586-023-06590-8 Abstract The observation that many lavas associated with mantle plumes have higher 3He/4He ratios than the upper convecting mantle underpins geophysical, geodynamic and geochemical models of Earth’s deep interior. High 3He/4He ratios are thought to derive from the solar nebula
[05 Nov 2023] NASA Asteroid Mission Discovers Tiny Surprise Moon with ‘Really Bizarre’ Shape
NASA’s Lucy mission flew past an asteroid nicknamed Dinky, only to discover an even smaller space rock orbiting it By Meghan Bartels on November 3, 2023 NASA Asteroid Mission Discovers Tiny Surprise Moon with ‘Really Bizarre’ Shape A smaller
[05 Nov 2023] New commercial space bill addresses mission authorization and SSA
New commercial space bill addresses mission authorization and SSA Jeff FoustNovember 5, 2023 WASHINGTON — The Republican leadership of the House Science Committee has introduced legislation that would create a mission authorization system for commercial space activities and alter plans
[04 Nov 2023] Space mining is getting closer to becoming a reality, and Canada could play a major role
Science Space mining is getting closer to becoming a reality, and Canada could play a major role ‘This is a future industry that we could own as Canadians,’ says one space mining expert. November 04, 2023 It’s the stuff of
[03 Nov 2023] It’s almost showtime for SpaceX’s massive Starship rocket
https://arstechnica.com/space/2023/11/its-almost-showtime-for-spacexs-massive-starship-rocket/ SpaceX will again target a morning liftoff for the rocket. Eric Berger – 11/3/2023, 2:49 PM Enlarge / Starship is stacked and ready to fly, SpaceX says. SpaceX SpaceX announced on Friday that the company is targeting “mid-November” for
[03 Nov 2023] Leap seconds could become leap minutes, despite pushback from Russians, Vatican
Already endangered, the leap second might have a practical successor soon. Kevin Purdy – 11/3/2023, 1:10 PM GettyImages-515283780-800×619.jpeg Enlarge / Dr. Charles H. Townes, inventor of the maser, a key component of atomic clocks, illustrates the differences between it
[02 Nov 2023] Galactic 05 drop and ignition
Galactic 05 drop and ignition. Another suborbital spaceflight in the books! Congratulations @AlanStern @kelliegerardi
[02 Nov 2023] NASA’s Lucy Spacecraft Discovers 2nd Asteroid During Dinkinesh Flyby
On Nov. 1, NASA’s Lucy spacecraft flew by not just its first asteroid, but its first two. The first images returned by Lucy reveal that the small main belt asteroid Dinkinesh is actually a binary pair. This image shows the
[02 Nov 2023] i-Space successfully conducted a hop test of Hyperbola-2 test vehicle SQX-2Y today at Jiuquan
? i-Space successfully conducted a hop test of Hyperbola-2 test vehicle SQX-2Y today at Jiuquan.The little rocket, 3.35m wide & 17m tall, powered by one 15t-thrust JD-1 metholox engine, reached 178.42m & then landed just ~1.68m away from the