News tagged with stellar neighbors


New planet discoveries suggest low-mass planets are common around nearby stars

New planet discoveries suggest low-mass planets are common around nearby stars (w/ Video)

Space & Earth / Astronomy

created Dec 14, 2009 | popularity 4.8 / 5 (17) | comments 14

(PhysOrg.com) -- An international team of planet hunters has discovered as many as six low-mass planets around two nearby Sun-like stars, including two "super-Earths" with masses 5 and 7.5 times the mass of ...


Brown Dwarfs Don't Hang Out With Stars

Brown Dwarfs Don't Hang Out With Stars

Space & Earth / Astronomy

created Jan 05, 2009 | popularity 4.4 / 5 (5) | comments 0

(PhysOrg.com) -- Brown dwarfs, objects that are less massive than stars but larger than planets, just got more elusive, based on a study of 233 nearby multiple-star systems by NASA's Hubble Space Telescope. ...





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Chandra Peers at Cosmic Super Bubbles

Chandra Peers at Cosmic Super Bubbles

Space & Earth / Astronomy

created Aug 31, 2007 | popularity 4.5 / 5 (15) | comments 0

Using the Chandra X-ray Observatory, astronomers explored a particular region of clouds and gas where stars are forming in one of the Milky Way's closest galactic neighbors.


Report: Arizonans make good neighbors, but not good citizens

Other Sciences / Social Sciences

created Dec 16, 2009 | popularity 3 / 5 (2) | comments 0

(PhysOrg.com) -- Polls consistently show that Arizonans take pride in their state, enjoy their quality of life, and like and trust their neighbors. Yet despite such positive outlooks, the percentage of Arizona citizens who ...


Is the Milky Way doomed to be destroyed by galactic bombardment? Probably not, study says

Is the Milky Way doomed to be destroyed by galactic bombardment? Probably not

Space & Earth / Astronomy

created Aug 31, 2009 | popularity 4.3 / 5 (12) | comments 2

(PhysOrg.com) -- As scientists attempt to learn more about how galaxies evolve, an open question has been whether collisions with our dwarf galactic neighbors will one day tear apart the disk of the Milky ...


Cygnus X-1: Still a "Star"

Cygnus X-1: Still a 'Star' After All Those Years

Space & Earth / Astronomy

created Aug 28, 2009 | popularity 4.5 / 5 (11) | comments 4

Since its discovery 45 years ago, Cygnus X-1 has been one of the most intensively studied cosmic X-ray sources. About a decade after its discovery, Cygnus X-1 secured a place in the history of astronomy when ...


Living fossils hold record of 'supermassive' kick

Living fossils hold record of 'supermassive' kick

Space & Earth / Astronomy

created Jul 09, 2009 | popularity 4.7 / 5 (15) | comments 9

The tight cluster of stars surrounding a supermassive black hole after it has been violently kicked out of a galaxy represents a new kind of astronomical object and a fossil record of the kick.


Ultra-Powerful Laser Reproduces How Star's Jets Travel through Interstellar Space

Ultra-Powerful Laser Reproduces How Star's Jets Travel through Interstellar Space

Physics / General Physics

created Nov 20, 2009 | popularity 4.6 / 5 (9) | comments 0

(PhysOrg.com) -- A multi-trillion-watt laser at the University of Rochester has simulated a stellar jet -- an outpouring of matter from a fledgling star -- with unprecedented realism.


Can a plant be altruistic?

Biology / Plants & Animals

created Nov 11, 2009 | popularity 4.8 / 5 (5) | comments 0

The concept of altruism has long been debated in philosophical circles, and more recently, evolutionary biologists have joined the debate. From the perspective of natural selection, altruism may have evolved because any ...


NYU physicists make room for oddballs

NYU physicists make room for oddballs

Other Sciences / Mathematics

created Aug 03, 2009 | popularity 5 / 5 (2) | comments 0

(PhysOrg.com) -- Here's a question. How many gumballs of different sizes can fit in one of those containers at the mall so as to reward a well-spent quarter? It's hard to believe that most people never consider ...


Astrophysicists Move Closer to Understanding the Beauty Behind Stellar Jets

Space & Earth / Astronomy

created Sep 28, 2009 | popularity 4.2 / 5 (5) | comments 1

(PhysOrg.com) -- Certain stars stream vast amounts of matter into space, creating some of the most beautiful objects in astronomers' telescopes. But while the astronomers can enjoy the beauty, they can't explain it. Adam ...


The mouse that roared: pipsqueak star unleashes monster flare

The mouse that roared: pipsqueak star unleashes monster flare

Space & Earth / Astronomy

created May 19, 2008 | popularity 4.6 / 5 (36) | comments 1

On April 25, NASA’s Swift satellite picked up the brightest flare ever seen from a normal star other than our Sun. The flare, an explosive release of energy from a star, packed the power of thousands of solar ...



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