A sparkling stellar nursery appears reminiscent of the early universe in new images from the Hubble Space Telescope. The emission nebula, known as Sh2-284, is an immense region of gas and dust ...
Helix Nebula: This a planetary nebula, which is formed when a star like the Sun runs out of fuel, expands and its outer layers puff off, and then the core of the star shrinks. Orion Nebula ...
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