"The surprise that a supposedly quiet, discless system could drive such a spectacular nebula was one of those rare 'wow' ...
Astronomers have observed a white dwarf - a highly compact Earth-sized stellar ember - that is creating a colorful shockwave ...
Astronomy often moves forward in small steps. Then, from time to time, something appears in the sky that simply does not fit ...
Astronomers have detected a white dwarf, a dense stellar remnant, creating a colorful shockwave as it traverses space.
At the heart of our sun, fusion is unfolding. As hydrogen atoms merge to form helium, they emit energy, producing the heat ...