See a nebula that disappears into the interstellar medium

The oblate shells of ESO 455-10, which were previously tightly held together as layers of a central star, are not only

give this planetary nebula its unique appearance, but also provideThe distinct asymmetrical arc of material visible in the stellar field on its northern side is a clear indication of the interaction between ESO 455-10 and the interstellar medium.

Despite its name, a planetary nebula is an astronomical object that is a shell of ionized gas around a central star, a white dwarf.It is formed by the ejection of the outer layers of a red giant or supergiant with a mass of0.8 to 8 solar at the final stage of its evolution.

The interstellar medium is the material made up of matter and radiation between star systems and  galaxies.The star at the centre of ESO 455-10 interacts with the nebula's gas and dust, as well as the surrounding interstellar medium.Planetary nebulae are thought to be crucial for the growth of galaxies.The fact is that they "eject" elements into the interstellar medium, which over time will formthe next generation of stars.

On April 24, 1990,  the Hubble Space Telescope was launched into Earth orbit .It is an unmanned observatory in orbit around the Earth, named after Edwin Hubble.The Hubble Space Telescope is a joint project of NASA and the European Space Agency and is part of theNASA's Large Observatories. 

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