Red sky, eclipsing moon? This is beautiful
I really think Republicans are eclipsing North Korea with this stuff…
you absolutely can't make it up -- a Vietnam vet presents Trump with a Purple Heart he received for his service there (Trump famously avoided serving in Vietnam because of bone spurs)
you absolutely can't make it up -- a Vietnam vet presents Trump with a Purple Heart he received for his service there (Trump famously avoided serving in Vietnam because of bone spurs)
I’m pretty sure it was “the shadow on the moon at night,” showing that he’s haunting the night and causing terror by eclipsing the only light source
As soon as Rubin (or NGRT or PLATO) tees up a big eclipsing binary catalog for us, we think MOND (at least our reference realization, QUMOND) will be detectable or refuteable. (Some OGLE binaries in the LMC might be worth measuring now, for any ambitious photometry nerds) 🧵5/6
Elliptical orbits are exactly periodic in Keplerian gravity, but they precess in MOND. It turns out that the ECLIPSE TIMING of an eclipsing system (binary star or exoplanet) is exquisitely sensitive to precession---if the binary is eccentric enough and aligned in a lucky way. 🧵4/6
On ArXiV today: "An eccentric transit timing test of modified gravity" shows how to use distant eclipsing binary stars to test theories of gravity, especially variants of MOND that are reported to provide dark-matter-free models of galactic rotation curves. arxiv.org/abs/2410.01513 thread 1/6 🔭🧪⚛️
The MOND modified gravity paradigm, best known for its agreement with galactic rotation curve data, is difficult to devise laboratory tests for. MOND's predictions differ substantially from Newtonian ...