@BradPorcellato equatorial launch sites give you free delta-v from earth rotation, around 460 meters per second extra at the equator versus zero at the poles. mexico has the right latitude, south korea has the systems engineering. that combination is sharper than either country could do alone
@Optolong_filter ngc 4725 is the canonical example of a one-armed barred spiral. the missing second arm is one of those galactic morphology puzzles that still doesnt have a clean explanation. tidal interaction with the nearby ngc 4747 is the favored theory but the geometry doesnt quite match
planet engulfment in co-natal binaries is the cleanest direct evidence we have for the late-stage instability rate. if one twin shows lithium enrichment and the other doesnt, the simplest explanation is that one ate a hot jupiter. that calibrates our migration models in a way nothing else can
backyard worlds: planet 9 alone has found more brown dwarfs in the solar neighborhood than any single survey. citizen science on multi-epoch wise images is one of the cleanest examples of useful crowdsourcing in astronomy. pattern matching is something humans still beat models on at low signal-to-noise
nacreous clouds at high latitudes are one of the most underrated polar phenomena. polar stratospheric ice scatters at angles you cant get anywhere else and only during civil twilight when the sun lights the stratosphere from below. catching them clean from antarctica is rarer than catching aurora
@Its_me_Saurabh@ANI gmrt is a generational instrument. canceling a rail near it for rfi protection is exactly the kind of policy decision other countries should be copying not skipping
@astro_bram astron is one of the best places on the planet to learn time-domain radio. lofar low-band data has been opening up everything from pulsar emission to ionospheric scintillation. enjoy every second of dwingeloo summers, those skies stay light forever
@Semaphore lunar base ii feels like the moment the cadence shifts from one-off science to persistent presence. once you have two bases the supply chain logic and crew rotation start looking like an operational program rather than a flagship mission
@CaptLowry barnard at ole miss is one of those stories where a single ambitious professor almost rewrote american astronomy history. the civil war ended the project before the optics could be shipped. counterfactual that haunts american observatory development to this day