Astronomicheskaya kartinka dnya (APOD)
APOD: 2025 May 12 B Gaia Reconstructs a Side View of our Galaxy
11.05.2025 | Astronomicheskaya kartinka dnya
What does our Milky Way Galaxy look like from the side? Because we are on the inside, humanity canBt get an actual picture. Recently, however, just such a map has been made using location data for over a billion stars from ESABs Gaia mission.
APOD: 2025 May 11 B The Surface of Venus from Venera 14
10.05.2025 | Astronomicheskaya kartinka dnya
If you could stand on Venus -- what would you see? Pictured is the view from Venera 14, a robotic Soviet lander which parachuted and air-braked down through the thick Venusian atmosphere in March of 1982.
Yogi and Friends in 3D
9.05.2025 | Astronomicheskaya kartinka dnya
This picture from July 1997 shows a ramp from the Pathfinder lander, the Sojourner robot rover, deflated landing airbags, a couch, Barnacle Bill and Yogi Rock appear together in this 3D stereo view of the surface of Mars. Barnacle Bill is the rock just left of the house cat-sized, solar-paneled Sojourner.
Sputnik IXPE issleduet dzhet ot chernoi dyry
8.05.2025 | Astronomicheskaya kartinka dnya
Kak chernye dyry sozdayut rentgenovskoe izluchenie? Novye dannye dlya resheniya etoi davno voznikshei problemy byli polucheny sputnikom NASA IXPE. Rentgenovskie luchi ne mogut pokinut' chernuyu dyru, no oni mogut byt' sozdany v ee blizkih okrestnostyah, v osobennosti v dzhete iz dvizhushihsya naruzhu chastic.
M1: udivitel'nyi rasshiryayushiisya Krab
7.05.2025 | Astronomicheskaya kartinka dnya
Krabovidnaya tumannost' zanesena v katalog pod nomerom M1 – ona stala pervoi v znamenitom spiske ob'ektov, ne yavlyayushihsya kometami, sostavlennom Sharlem Mess'e. Seichas izvestno, chto Krabovidnaya tumannost' – ostatok vspyshki sverhnovoi, rasshiryayusheesya oblako veshestva, ostavshegosya posle vzryva massivnoi zvezdy. Burnoe rozhdenie Kraba bylo zamecheno astronomami v 1054 godu.
Galakticheskie voiny: M81 protiv M82
6.05.2025 | Astronomicheskaya kartinka dnya
V verhnem levom uglu – spiral'naya galaktika M81, okruzhennaya golubymi spiral'nymi rukavami s krasnymi tumannostyami. V nizhnem pravom uglu – nepravil'naya galaktika M82, v kotoroi yarkaya central'naya polosa okruzhena krasnym svetyashimsya gazom. Poslednii milliard let dve gigantskie galaktiki, pokazannye na etom velikolepnom kosmicheskom peizazhe, vedut gravitacionnyi poedinok.
Dvazhdy iskrivlennyi mir dvoinyh chernyh dyr
5.05.2025 | Astronomicheskaya kartinka dnya
Esli odna chernaya dyra vyglyadit stranno, to kak vyglyadyat dve? Luchi sveta ot akkrecionnyh diskov vokrug pary obrashayushihsya vokrug obshego centra tyazhesti sverhmassivnyh chernyh dyr prohodyat skvoz' iskrivlennoe ih ekstremal'noi gravitaciei prostranstvo-vremya. Na etoi...
Dorozhki na vode
4.05.2025 | Astronomicheskaya kartinka dnya
Pochemu na vode poyavilis' eti dorozhki? Otrazheniya nebesnyh svetil v vode inogda vyglyadyat kak dorozhki, no pochemu? Esli poverhnost' vody gladkaya, otrazheniya ob'ektov v nebe budut vyglyadet' kak pyatnyshki. No esli na vode est' volny, otrazhenie nebesnogo svetila mozhet priiti k vam iz neskol'kih mest, kotorye obychno obrazuyut liniyu.
Vrashayushayasya sverhmassivnaya chernaya dyra
3.05.2025 | Astronomicheskaya kartinka dnya
Kak bystro mozhet vrashat'sya chernaya dyra? Esli lyuboi ob'ekt, sostoyashii iz obychnogo veshestva, stanet vrashat'sya slishkom bystro, on budet razorvan. Odnako chernaya dyra ne mozhet razorvat'sya, i maksimal'naya skorost' ee vrasheniya neizvestna. Teoretiki obychno modeliruyut bystro vrashayushiesya chernye dyry resheniem Kerra Obshei teorii otnositel'nosti Einshteina, kotoroe predskazyvaet neskol'ko udivitel'nyh i neobychnyh posledstvii.
Titan: sputnik nad Saturnom
2.05.2025 | Astronomicheskaya kartinka dnya
Kak i u sputnika Zemli – Luny, vrashenie samogo bol'shogo sputnika Saturna – Titana sinhronizirovano s obrasheniem po orbite. Na kartinke, smontirovannoi iz izobrazhenii, poluchennyh kosmicheskim apparatom Kassini v mae 2012 goda, zapechatlena storona Titana, vsegda obrashennaya ot okruzhennogo kol'cami gazovogo giganta. Titan – edinstvennyi sputnik v Solnechnoi sisteme s plotnoi atmosferoi.