Why sibling stars look alike: Early, fast mixing in star-birth clouds 31 August 2014, 9:03 pm Early, fast, turbulent mixing of gas within giant molecular clouds -- the birthplaces of stars -- means all stars formed from a single cloud bear the same unique chemical 'tag' or 'DNA fingerprint,' write astrophysicists. Could such chemical tags help astronomers identify our own Sun's long-lost sibling stars?
NASA's Spitzer Space Telescope witnesses asteroid smashup 28 August 2014, 11:01 pm NASA's Spitzer Space Telescope has spotted an eruption of dust around a young star, possibly the result of a smashup between large asteroids. This type of collision can eventually lead to the formation of planets.
Astronomy: Radio telescopes settle controversy over distance to Pleiades 28 August 2014, 8:27 pm A worldwide network of radio telescopes measured the distance to the famous star cluster the Pleiades to an accuracy within 1 percent. The result resolved a controversy raised by a satellite's measurement that now is shown to be wrong. The incorrect measurement had challenged standard models of star formation and evolution.
Red Planet's climate history uncovered in unique Martian meteorite 27 August 2014, 7:15 pm Was Mars -- now a cold, dry place -- once a warm, wet planet that sustained life? Research underway may one day answer those questions -- and perhaps even help pave the way for future colonization of the Red Planet. By analyzing the chemical clues locked inside an ancient Martian meteorite known as Black Beauty, scientists are revealing the story of Mars’ ancient, and sometimes startling, climate history.
Early growth of giant galaxy, just 3 billion years after the Big Bang, revealed 27 August 2014, 7:15 pm The birth of massive galaxies, according to galaxy formation theories, begins with the buildup of a dense, compact core that is ablaze with the glow of millions of newly formed stars. Evidence of this early construction phase, however, has eluded astronomers — until now. Astronomers identified a dense galactic core, dubbed "Sparky," using a combination of data from several space telescopes. Hubble photographed the emerging galaxy as it looked 11 billion years ago, just 3 billion years after the birth of our universe in the big bang.
Best view yet of merging galaxies in distant universe 26 August 2014, 8:11 pm Astronomers have obtained the best view yet of a collision between two galaxies when the Universe was only half its current age. To make this observation, the team also enlisted the help of a gravitational lens, a galaxy-size magnifying glass, to reveal otherwise invisible detail.
Voyager map details Neptune's strange moon Triton 22 August 2014, 3:35 pm NASA's Voyager 2 spacecraft gave humanity its first close-up look at Neptune and its moon Triton in the summer of 1989. Like an old film, Voyager's historic footage of Triton has been "restored" and used to construct the best-ever global color map of that strange moon. The map, produced by Paul Schenk, a scientist at the Lunar and Planetary Institute in Houston, has also been used to make a movie recreating that historic Voyager encounter, which took place 25 years ago, on August 25, 1989.