Stellar Evolution

X-ray Burst May Be the First Sign of a Supernova

GRB 080913, a distant supernova detected by Swift. This image merges the view through Swift's UltraViolet and Optical Telescope, which…

11 years ago

Unraveling the Secrets of Type Ia Supernovae: a New Two-Minute Thesis

The folks over at PHD Comics have put together a new video in their Two-Minute Thesis series, this one featuring…

11 years ago

Orion Revisited: Astronomers Find New Star Cluster in Front of the Orion Nebula

The well-known star-forming region of the Orion Nebula.  Credit: Canada-France-Hawaii Telescope / Coelum (J.-C. Cuillandre & G. Anselmi) Precise distances…

11 years ago

Closely-Orbiting Stellar Companions Surrounded by “Mystery Dust”

Artist's concept showing a dust disk around a binary system containing a white dwarf and a less-massive M (red) dwarf…

11 years ago

Here There Be Planets: Stellar Disk Gap May Reveal Newborn Worlds

HiCIAO near-infrared image of the protoplanetary disk around PDS 70. The circular mask hides the star itself, as well as…

11 years ago

Dying Star Blows Surprising Spiral Bubble

Using the Atacama Large Millimeter/submillimeter Array, or ALMA, astronomers found an unexpected spiral structure surrounding the red giant star R…

12 years ago

A New Species of Type Ia Supernova?

Artist’s conception of a binary star system that produces recurrent novae, and ultimately, the supernova PTF 11kx. (Credit: Romano Corradi…

12 years ago

Bright Stars Don’t Like to Be Alone

Caption: New research using data from European Southern Observatory telescopes, including the Very Large Telescope, has revealed that the hottest…

12 years ago

The Last Outbursts of a Dying Star

As stars approach the inevitable ends of their lives they run out of stellar fuel and begin to lose a…

12 years ago

“Impossible” Binary Star Systems Found

Astronomers think about half of the stars in our Milky Way galaxy are, unlike our Sun, part of a binary…

12 years ago