The first images of a nova during its early fireball stage--when it ejects material, and gases expand and cool--show that this activity is more complicated than predicted.
That is the conclusion, published in the current issue of Nature, from a research collaboration led by Georgia State University Astronomer Gail Schaefer that includes 37 researchers (many who are National Science Foundation (NSF)-funded) from 17 institutions. The researchers observed the expanding thermonuclear fireball from a nova that erupted last year in the constellation Delphinus.