A sheet of dark matter lying beyond the boundary of the Local Group is responsible for this.
A vast, flat sheet of dark matter may solve the long-standing mystery of why our neighboring galaxy Andromeda is speeding ...
It turns out that looming collision between our Milky Way and Andromeda galaxies might not happen after all. Astronomers reported Monday that the probability of the two spiral galaxies colliding is ...
August has been a month jam-packed with cosmic phenomena visible from Earth – from nebulas to meteor showers to planetary conjunctions. But the month isn't over yet. And now, add to the mix one of the ...
Our Milky Way galaxy may not have a supermassive black hole at its center but rather an enormous clump of mysterious dark ...
The Milky Way is a spiral galaxy containing 100-400 billion stars. Planet Earth sits along one of the galaxy’s spiral arms. Though the Milky Way is generally always visible from Earth, certain times ...