SNR 0509-67.5, calcium is shown in blue, and appears in two concentric shells suggesting a double detonation. | Credit: ESO/P. Das et al. Background stars (Hubble): K. Noll et al.

Planets form out of the leftover gas and dust once a star has ignited, and it's believed that the forming planet or planets create a disk around the host star. While astronomers have seen this ...

WASHINGTON (Reuters) -The explosion of a star, called a supernova, is an immensely violent event. It usually involves a star more than eight times the mass of our sun that exhausts its nuclear ...

The supernova remnant SNR 0509-67.5 view from the European Southern Observatory's Very Large Telescope, the expanding remains of a star that exploded hundreds of years ago in a double-detonation ...