NGC 2207 and IC 2163. 600 million years ago, the Antennae passed through each other, looking like the Mice Galaxies. 300 million years ago, the Antennae's stars began to be released from both galaxies. Today the two streamers of ejected stars extend far beyond the original galaxies, resulting in the antennae shape.[citation needed]Within 400 million years, the Antennae's nuclei will collide and become a single core with stars, gas, and dust around it.[citation needed] Observations and simulations of colliding galaxies suggest that the Antennae Galaxies will eventually form an elliptical galaxy.[8]X-ray sourceAreas containing large amounts of neon, magnesium, and silicon were found when the Chandra X-ray Observatory analyzed the Antennae Galaxies. These elements are necessary in order for planets that may contain life to form. The clouds imaged contain 16 times as much magnesium and 24 times as much silicon as the Sun.https://en.wikipedia.org/wiki/Antennae_Galaxieshttp://hubblesite.org/newscenter/archive/releases/2006/46/video/a/VEJA O VIDEO: Super Star Clusters in the Antennae Galaxieshttp://hubblesite.org/newscenter/archive/releases/2006/46/video/a/Zooming through the nighttime sky into the constellation Corvus the crow, deeper into the Hubble's Advanced Camera for Surveys image of the Antennae galaxies. The "stellar fireworks" contain brilliant young clusters of tens of thousands of stars. Orange blobs to the left and right of center are the two cores of the original galaxies, criss-crossed by dark filaments of dust seen in silhouette. Brilliant blue star clusters, born in the collision, pepper the galaxies. Pinkish glowing hydrogen gas surround star birth regions glowing under the intense energy from newborn stars.Credit: NASA, ESA, and G. Bacon (STScI)Antennae: A Galactic Spectaclehttp://chandra.harvard.edu/photo/2010/antennae/antennae_wide_field.jpgWide-field Optical Image The Antennae galaxies take their name from the long antenna-like "arms," seen in wide-angle views of the system. These features were produced by tidal forcesgenerated in the collision.(Credit: Digitized Sky Survey)http://hubblesite.org/newscenter/archive/releases/1997/34/image/d/format/large_web/Object Names: NGC 4038/4039, AntennaeImage Type: AstronomicalCredit: Brad Whitmore (STScI) and NASAhttp://hubblesite.org/newscenter/archive/releases/1997/34/image/d/Antennae Galaxy Closeup (NGC 4038/4039 )Antennae Galaxy Closeup (NGC 4038/4039 )http://imgsrc.hubblesite.org/hu/db/images/hs-1997-34-g-full_jpg.jpgObject Names: NGC 4038/4039, AntennaeImage Type: AstronomicalCredit: Brad Whitmore (STScI) and NASAhttp://hubblesite.org/newscenter/archive/releases/1997/34/image/a/format/web_print/ABOUT THIS IMAGE:This Hubble Space Telescope image provides a detailed look at a brilliant "fireworks show" at the center of a collision between two galaxies. Hubble has uncovered over 1,000 bright, young star clusters bursting to life as a result of the head-on wreck.[Left]A ground-based telescopic view of the Antennae galaxies (known formally as NGC 4038/4039) - so named because a pair of long tails of luminous matter, formed by the gravitational tidal forces of their encounter, resembles an insect's antennae. The galaxies are located 63 million light-years away in the southern constellation Corvus.[Right]The respective cores of the twin galaxies are the orange blobs, left and right of image center, crisscrossed by filaments of dark dust. A wide band of chaotic dust, called the overlap region, stretches between the cores of the two galaxies. The sweeping spiral- like patterns, traced by bright blue star clusters, shows the result of a firestorm of star birth activity which was triggered by the collision.This natural-color image is a composite of four separately filtered images taken with the Wide Field Planetary Camera 2 (WFPC2), on January 20, 1996. Resolution is 15 light-years per pixel (picture element).Object Names: NGC 4038/4039, AntennaeImage Type: AstronomicalCredit: