A black hole in a low mass X-ray binary
14 hours ago
A globular cluster is a roughly spherical ensemble of stars (as many as several million) that are gravitationally bound together, and typically located in the outer regions of galaxies. Low mass X-ray binary stars (LMXBs) ...
Hubble's cosmic bubbles
Apr 21, 2017
This entrancing image shows a few of the tenuous threads that comprise Sh2-308, a faint and wispy shell of gas located 5,200 light-years away in the constellation of Canis Major (The Great Dog).
Scientists have worked out how dung beetles use the Milky Way to hold their course
Apr 21, 2017
Insects navigate in much the same way that ancient humans did: using the sky. Their primary cue is the position of the sun, but insects can also detect properties of skylight (the blue light scattered by the upper atmosphere) ...
First clear image made of accretion disk surrounding young star
Apr 20, 2017 report
(Phys.org)—A team of researchers from the U.S. and Taiwan has captured the first clear image of a young star surrounded by an accretion disk. In their paper published in the journal Science Advances, the team describes ...
Astronomers perform largest-ever survey of high-mass binary star systems
Apr 20, 2017
In addition to solo stars like the sun, the universe contains binary systems comprising two massive stars that interact with each other. In many binaries, the two stars are close enough to exchange matter and may even merge, ...
Newly discovered exoplanet may be best candidate in search for signs of life
Apr 19, 2017
The newly discovered super-Earth LHS 1140b orbits in the habitable zone around a faint red dwarf star named LHS 1140, in the constellation of Cetus (The Sea Monster). Red dwarfs are much smaller and cooler than the Sun and, ...
Massive exoplanet discovered using gravitational microlensing method
Apr 18, 2017 report
(Phys.org)—Astronomers have found a new massive alien world using the gravitational microlensing technique. The newly detected exoplanet, designated MOA-2016-BLG-227Lb, is about three times more massive than Jupiter and ...
Supermassive black holes found in two tiny galaxies
Apr 17, 2017
Three years ago, a University of Utah-led team discovered that an ultra-compact dwarf galaxy contained a supermassive black hole, then the smallest known galaxy to harbor such a giant black hole. The findings suggested that ...
The lifetimes of massive star-forming regions
Apr 17, 2017
Astronomers can roughly estimate how long it takes for a new star to form: it is the time it takes for material in a gas cloud to collapse in free-fall, and is set by the mass, the size of the cloud, and gravity. Although ...
Hubble sees starbursts in Virgo
Apr 14, 2017
Although galaxy formation and evolution are still far from being fully understood, the conditions we see within certain galaxies—such as so-called starburst galaxies—can tell us a lot about how they have evolved over ...