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A team of scientists has used gravitational microlensing to come up with a tentative detection of an extragalactic exoplanet in Andromeda, the Milky Way's nearest large galactic neighbor. The lensing pattern fits a star with a smaller companion, PA-99-N2, weighing just around 6.34 times the mass of Jupiter. This suspected planet is the first ...
The Milky Way [c] is the galaxy that includes the Solar System, ... Outside the gravitational influence of the Galactic bar, ...
The Milky Way has several smaller galaxies gravitationally bound to it, as part of the Milky Way subgroup, which is part of the local galaxy cluster, the Local Group. [ 1 ] There are 61 small galaxies confirmed to be within 420 kiloparsecs (1.4 million light-years ) of the Milky Way, [ 2 ] but not all of them are necessarily in orbit, and some ...
While Earth is located about 26,000 light-years from what's known as the galactic center, the outer portions of the Milky Way are even further, at about 58,000 light-years from our galaxy's ...
Scientists have found the first ever disc structure around a star outside of our own Milky Way. The disc is around a young massive star forming in a stellar nursery called N180.
A team of astronomers using NASA's Chandra X-ray Observatory has found evidence of an planet outside the Milky Way galaxy for the first time. The post Astronomers Discover First Possible Planet ...
Galaxies in the 1995 Hubble Deep Field. Extragalactic astronomy is the branch of astronomy concerned with objects outside the Milky Way galaxy. In other words, it is the study of all astronomical objects which are not covered by galactic astronomy.
“Even in our Milky Way galaxy we do not have such image.” Massive stars have shorter lives than less massive ones. For instance, the sun is already more than 4.5 billion years old and has ...