1 00:00:04,390 --> 00:00:02,629 this interacting galaxy duo called 2 00:00:07,269 --> 00:00:04,400 arp143 3 00:00:11,910 --> 00:00:07,279 holds the distorted star-forming spiral 4 00:00:16,470 --> 00:00:11,920 galaxy ngc 2445 at the right along with 5 00:00:17,990 --> 00:00:16,480 its less flashy companion ngc 2444 at 6 00:00:20,710 --> 00:00:18,000 the left 7 00:00:23,269 --> 00:00:20,720 astronomers think both galaxies pass 8 00:00:26,870 --> 00:00:23,279 through each other igniting the unique 9 00:00:31,349 --> 00:00:26,880 triangular shaped firestorm of starburst 10 00:00:33,990 --> 00:00:31,359 because ngc 2445 is rich in gas the fuel 11 00:00:36,709 --> 00:00:34,000 of star formation it holds thousands of 12 00:00:39,510 --> 00:00:36,719 infant stars yet it hasn't escaped the 13 00:00:42,470 --> 00:00:39,520 gravitational clutches of its partner 14 00:00:43,630 --> 00:00:42,480 the pair is waging a cosmic tug-of-war 15 00:00:47,110 --> 00:00:43,640 an 16 00:00:49,270 --> 00:00:47,120 2444 appears to be winning the galaxy 17 00:00:51,590 --> 00:00:49,280 has pulled gas from its companion 18 00:00:53,430 --> 00:00:51,600 forming the oddball triangle of newly 19 00:00:55,750 --> 00:00:53,440 minted stars 20 00:00:57,990 --> 00:00:55,760 by studying head-on galaxy collisions 21 00:01:00,790 --> 00:00:58,000 like this we can better understand the