Scientists are expanding the definition of habitable zones (the area around a star where a life-sustaining planet might lurk), taking into account the effect of stellar activity that can threaten exoplanets' atmospheres with oxygen loss.
Dazzling Diamonds of Trumpler 14 - A new image captured by the Hubble Space Telescope reveals shimmering jewel-like stars. A cluster of stars known as Trumpler 14 about light-years from Earth contains a couple thousand young, luminous stars.
Rare Brightening of a Supernova's Light found by Palomar Observatory Astronomers find multiple images of a magnified "standard candle" in the sky, leading the way to more precise measurements of the expansion rate of our universe
During the summer months, the Summer Triangle star formation lights the sky from dusk until dawn. It consists of three bright stars: Vega in the constellation Lyra, Deneb in the constellation Cygnus, and Altair in the constellation Aquila.