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@mpsgoettingen@academiccloud.social
2026-05-22 12:12:52

Different #meteorites, same birthplace: The parent bodies of
different groups of #CarbonaceousChondrites may have formed in the same region of the #SolarSystem…

Just outside Jupiter’s orbit, a ring-shaped region of high gas pressure formed. In this “dust trap,” over several million years planetesimals of varying compositions were able to form.
Different groups of carbonaceous chondrites (here CO, CV, CM, TL, CI, and CR) can be traced back to different generations of planetesimals that formed over the course of about two million years. They differ in their proportions of fine-grained material (shown here in blue) and inclusions (shown here in brown).
@Techmeme@techhub.social
2026-06-09 20:05:56

Kalshi plans to require users seeking to make bets in some markets linked to material nonpublic information to submit an online form disclosing where they work (Wall Street Journal)
wsj.com/finance/regulation/kal

@cdarwin@c.im
2026-07-03 23:32:56

Several tens of millions of years after Earth itself formed,
a large planet-sized object slammed into our nascent world,
delivering a glancing blow that blasted vast amounts of material into space.
This ejecta—a mix of Earth and the giant impactor—coalesced to form the moon.
Back then, the young moon was extremely close to Earth,
around 20,000 kilometers away
—much nearer than its current average distance of 380,000 km.
The moon would have been enor…

What will happen to the moon in the far future?
The moon is Earth’s constant companion. But will that always be the case?