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Latest Gravitational microlensing Stories

newly discovered planet in binary system
2014-07-04 04:31:19

redOrbit Staff & Wire Reports - Your Universe Online Astronomers have located a new terrestrial planet in a binary star system located roughly 3,000 light-years from Earth, according to new research appearing in the July 4 edition of the journal Science. Ohio State University professor Andrew Gould and four international teams of scientists used the technique of gravitational microlensing to discover the new planet, which is roughly twice the mass of Earth and orbits one of its...

Brightening Star Offers Astronomers New Way To Study Binary Systems
2014-04-22 10:48:49

Brett Smith for redOrbit.com - Your Universe Online Researchers searching for planets orbiting around a distant star look for a signature dimming of that star’s light, but what if the distant star suddenly gets a bit brighter? Astronomers from the University of Washington observed just such a phenomenon, but instead of concluding they had found an ‘upside-down’ planet, the scientists realized they had found a new way to study binary star systems, according to their report...

exomoon candidate
2014-04-10 12:05:00

Whitney Clavin, NASA Jet Propulsion Laboratory Titan, Europa, Io and Phobos are just a few members of our solar system's pantheon of moons. Are there are other moons out there, orbiting planets beyond our sun? NASA-funded researchers have spotted the first signs of an "exomoon," and though they say it's impossible to confirm its presence, the finding is a tantalizing first step toward locating others. The discovery was made by watching a chance encounter of objects in our galaxy, which...

Astronomers Discover New Way To Map Out Quasars
2013-07-01 12:24:07

Lee Rannals for redOrbit.com - Your Universe Online Astronomers said at a Royal Astronomical Society Meeting in St Andrews, Scotland on Monday that they have found a new way to map out quasars. Quasars are energetic and luminous central regions found in distant galaxies. When a star passes too close to a giant black hole, it is shredded by the gravitational field, producing a flare-up in the brightness of an otherwise normal looking galaxy. Astronomers observed this effect and found...

Stellar Alignment Allows Opportunity To Find Planets Near Proxima Centauri
2013-06-04 08:55:53

John P. Millis, Ph.D. for redOrbit.com — Your Universe Online Besides our own Sun, the red dwarf star Proxima Centauri is the nearest star to Earth. As such, astronomers have sought to determine if planets orbit the tiny object. But because of its low brightness, and other issues, previous attempts to find planets using traditional methods have failed. But researchers have now determined that two unique opportunities -- one in October 2014, another in February 2016 -- will allow...

Hunting For Earth-like Planets Gets A Boost From New Technique
2013-04-04 04:56:14

Lee Rannals for redOrbit.com - Your Universe Online Researchers at The University of Auckland wrote in the Monthly Notices of the Royal Astronomical Society that they have a new method that could lead to the discovery of 100 billion earth-like planets. The new strategy, called gravitational microlensing, requires a combination of data from microlensing and the NASA Kepler space telescope. “Kepler finds Earth-sized planets that are quite close to parent stars, and it estimates...

space-102912-002
2012-10-29 13:11:49

Lee Rannals for redOrbit.com - Your Universe Online Astronomers using simulations were able to catch the Large Magellanic Cloud (LMC) in the act of stealing stars away from its neighbor, the Small Magellanic Cloud (SMC). The team was trying to look for massive compact halo objects (MACHOs) in order to find out if they could be a major component of dark matter. In order for MACHOs to make up dark matter, they must be so faint that they can't be directly detected. When studying the...

Image 1 - Microlensing Survey Finds A Multitude Of Planets
2012-01-12 03:54:16

[ Watch the Video ] Planets around stars are the rule rather than the exception An international team, including three astronomers from the European Southern Observatory (ESO), has used the technique of gravitational microlensing to measure how common planets are in the Milky Way. After a six-year search that surveyed millions of stars, the team concludes that planets around stars are the rule rather than the exception. The results will appear in the journal Nature on 12 January 2012....

Image 1 - Low-mass Star Detected In Globular Cluster
2011-12-16 04:21:18

Even the most powerful high-tech telescopes are barely able to record remote low-mass and thus faint stars. Together with researchers from Poland and Chile, an astrophysicist from the University of Zurich has now detected a low-mass star in globular cluster M22 for the first time through microlensing. The result indicates that the overall mass of globular clusters might well be explained without enigmatic dark matter. Until now, it was merely assumed that low-mass and therefore extremely...


Word of the Day
mallemaroking
  • Nautical, the visiting and carousing of sailors in the Greenland ships.
This word is apparently from a confusion of two similar Dutch words: 'mallemerok,' a foolish woman, and 'mallemok,' a name for some persons among the crew of a whaling vessel.