10.12.12 - An enormous binary star pair some 4,700 light-years away pounds its surroundings with intense outflows called stellar winds.
10.11.12 - Planetary nebulae — the expanding, glowing shells of gas coming from sun-like stars at the end of their lives — are some of the most fascinating objects in the night sky.
10.05.12 - Swift recently detected the presence of a previously unknown stellar-mass black hole.
10.04.12 - This dazzling image shows the globular cluster Messier 69, or M 69 for short, as viewed through the NASA/ESA Hubble Space Telescope.
10.03.12 - What was once a fairly average star, not much different than our sun, can be seen unraveling at the seams in this new image from the Spitzer and GALEX space telescopes.
10.03.12 - Astronomers using NASA's Spitzer Space Telescope have announced the most precise measurement yet of the Hubble constant, or the rate at which our universe is stretching apart.
09.28.12 - This week, we highlight the galaxy NGC 4183, seen here with a beautiful backdrop of distant galaxies and nearby stars.
09.27.12 - Gravity waves predicted by Einstein have never been observed directly, but many scientists think that this discovery is just a few years away.
09.25.12 - Ten years' worth of data went into compiling the Hubble eXtreme Deep Field, the deepest view of our universe ever created.
09.24.12 - Chandra finds evidence that the Milky Way Galaxy is embedded in an enormous halo of hot gas that extends for hundreds of thousands of light years.