Starless cloud cores reveal why some stars are bigger than others
Massive stars – those at least 8 times the mass of our Sun – present an intriguing mystery: how do they grow so large when the vast majority of stars in the Milky Way are considerably smaller?
Scientists discover solar precursors of when, where sunspots will emerge
Subtle surface signs reveal when and where sunspots will emerge on the Sun, at least a day in advance, according to a team of researchers led by Northwest Research Associates (NWRA). The results were presented ...
Shedding new light on the brightest objects in the universe
A Dartmouth-led team of astrophysicists has discovered the extent to which quasars and their black holes can influence their galaxies.
Birth of black hole kills the radio star
Astronomers led by a Curtin University researcher have discovered a new population of exploding stars that "switch off" their radio transmissions before collapsing into a Black Hole.
Multi-tasking supernova: Record-breaking stellar explosion helps understand far-off galaxy
(Phys.org)—Nature hath no fury like a dying star—and astronomers couldn't be happier...
ALMA pinpoints early galaxies at record speed
(Phys.org) —A team of astronomers has used the new ALMA (Atacama Large Millimeter/submillimeter Array) telescope to pinpoint the locations of over 100 of the most fertile star-forming galaxies in the early ...
Astronomers discover exoplanet neighbor smaller than Earth
The University of Central Florida has detected what could be its first planet, only two-thirds the size of Earth and located right around the corner, cosmically speaking, at a mere 33light- years away.
Modeling Jupiter and Saturn's possible origins
New theoretical modeling by Carnegie's Alan Boss provides clues to how the gas giant planets in our solar system—Jupiter and Saturn—might have formed and evolved. His work was published recently by the ...
STEREO maps much larger solar atmosphere than previously observed
Surrounding the sun is a vast atmosphere of solar particles, through which magnetic fields swarm, solar flares erupt, and gigantic columns of material rise, fall and jostle each other around. Now, using NASA's ...
Astronomers discover dusty galaxies at ancient epoch, track build-up of star- and planet-forming material
(Phys.org)—Dust is an annoyance in everyday life, but an important building block of stars and planets. As such, astronomers need to understand how cosmic dust forms over time—it's an integral step in ...
Chandra sees eclipsing planet in X-rays for first time
For the first time since exoplanets, or planets around stars other than the sun, were discovered almost 20 years ago, X-ray observations have detected an exoplanet passing in front of its parent star.
Hunting high-mass stars with Herschel
(Phys.org) —In this new view of a vast star-forming cloud called W3, ESA's Herschel space observatory tells the story of how massive stars are born.
Physicists confirm first planet discovered in a quadruple star system
Justin Crepp, Freimann Assistant Professor of physics at the University of Notre Dame, provided the high-contrast imaging observations that confirmed the first extrasolar planet discovered in a quadruple ...
How abundant are Super-Earths?
Our solar system hosts a cornucopia of worlds, from the hellfire of Venus to the frozen plains of Mars to the mighty winds of Uranus. In that range, the Earth stands alone, with no planet coming close to ...