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Space and Astronomy Megathread (MERGED) - Part 1

Intuitive Machines robotic lunar lander. Landing scheduled for today, 17:30 EST.


After an orbital correction, the landing time has moved ahead an hour. Now scheduled for 16:24 EST.
 
Well, crap. Now the landing has been delayed to 18:24 EST. Sorry.
 
M106field_KyunghoonLim1024.jpg





A View Toward M106
Image Credit & Copyright: Kyunghoon Lim

 
AM1054_Hubble_960.jpg





AM1054: Stars Form as Galaxies Collide
Image Credit: NASA, ESA, STScI; Processing: J. English (U. Manitoba); Science: M. Rodruck (Penn State U. & Randolph-Macon C.) et al.;
Text: Jayanne English (U. Manitoba).
 
im-moon-imageFeb23_1024.jpg




Odysseus to the Moon
Image Credit: Intuitive Machines
 
Simeis147_Vetter_960.jpg
'




Supernova Remnant Simeis 147
Image Credit & Copyright: Stéphane Vetter (Nuits sacrées)
 
Hoag_HubbleBlanco_1080.jpg




Hoag's Object: A Nearly Perfect Ring Galaxy
Image Credit: NASA, ESA, Hubble; Processing: Benoit Blanco
 
leap-years.jpg


Here’s the scoop. (Pay attention; there'll be a test later.)


If a year is evenly divisible by 4, it’s a leap year. An extra day is added to February; and the year is 366 days long. E.g., 2024 (divisible by 4) is a leap year.

Unless…

If the year is also divisible by 100, then the leap is omitted. E.g., 1900 wasn’t a leap year; and 2100 won’t be either.

Unless…

If the year is also divisible by 400, then the leap is maintained. Thus, the year 2000 was a leap year because divisibility by 400 (leap: yes) supersedes divisibility by 100 (leap: no).

:nerdy:
 
The_Dish_Tracking_IM-1_22February2024_04s.jpg




Odysseus and The Dish
Image Credit & Copyright: John Sarkissian (ATNF Parkes Radio Observatory)
 

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