Since then, thousands more have been identified and described in surveys like the Abell Catalog of Planetary Nebulae and the ...

"Planetary nebulae were once thought to be simple, round objects with a single dying star at the center," astronomer Roger Wesson of Cardiff University said in a previous statement. "It begs the ...

when they and the shell of gas that surrounds them are known as planetary nebulae. In one of them, called WeSb 1, the scientists discovered that the brightness of the star occasionally flickered.

This is the metadata section. Skip to content viewer section. ABSTRACT The planetary nebula M94‐20 in the Large Magellanic Cloud was serendipitously observed with the Space Telescope Imaging ...