June 15, 2012 |
Two distant galaxies that appear to be colliding in an image captured by the Hubble Space Telescope actually are not, researchers said this week; the apparent collision is simply a trick of perspective that occurs because both galaxies are in the same direction from Earth. They are actually tens of millions of light-years apart, about 10 times the distance between our own Milky Way galaxy and the nearby Andromeda galaxy. The object was originally designated NGC 3314 when lower-resolution imaging suggested it was only one galaxy.
May 31, 2012 |
The Milky Way is set to collide with its closest neighbor, the Andromeda galaxy, astronomers working with the Hubble Space Telescope said Thursday. Galactic residents need not brace for impact just yet, however: The predicted collision would take place in 4 billion years. Andromeda, officially known as Messier 31, or M31, is located about 2.5 million light-years away from the Milky Way - which would make it our closest fellow spiral galaxy. Spiral galaxies have flat, rotating, disc-shaped bodies with spiral arms anchored by a supermassive black hole at the center.
October 15, 2005 |
Dozens of massive stars, destined for short but brilliant lives, were born less than a light-year from the Milky Way's central black hole, one of the most hostile environments in our galaxy, astronomers reported Thursday. Researchers using the orbiting Chandra X-ray Observatory and other instruments believe there is a safe zone around black holes, a big dust ring where stars can form.
August 20, 2005 |
From Earth, the Milky Way is a band of stars that lights up the night sky. From outside the galaxy looking in, astronomers say, it's an entirely different picture. Astronomers say a bar of stars cuts through the center of the galaxy that includes the sun and Earth. "We're pretty certain of the extent and orientation of this bar because we got more data than anybody else ... by a long shot," said Edward G.
September 27, 2003 |
Our Milky Way galaxy is a cannibal. A new view shows it is voraciously consuming one of its smaller galactic neighbors. The violent stretching, ripping and swallowing of the neighboring Sagittarius galaxy is not visible to human eyes because that galaxy is on the other side of the Milky Way and is obscured by numerous stars and clouds of dust. But a new infrared view of the skies taken by the Two Micron All Sky Survey, or 2MASS, reveals the destruction in vivid detail.
January 7, 2003 |
Like a celestial bully, the Milky Way may have ripped apart a smaller galaxy billions of years ago and scattered its stars into a faint surrounding ring. A survey scanning the outskirts of the Milky Way has found a belt of stars different in chemistry and in motion from stars within the galaxy, suggesting that they are the remnants of a galactic collision that may have occurred 10 billion years ago.