Why Is Our Galaxy Called the Milky Way? The truth is that nobody knows who exactly is responsible for giving the galaxy its name, but there is plenty of evidence as to how the name evolved. What is known is that the term “Milky Way” has been used in Western Astronomy for at least...
The Ancient Romans called it‘via lactea’which quite literally meant a ‘milky way/road’. Also, the word ‘galaxy’ is derived from a Greek word for ‘milk’. Although there is not absolute proof as to why they named our galaxy as something related to milk, some researchers believe what...
The black hole at the center of the Milky Way, called Sag A*, is much less active than those at the center of other galaxies. A new study points to a simple answer: heat.Spotts, Peter N
Our galaxy, the Milky Way, is shaped like a flat disk surrounding a central bulge. Whereas Population I stars are found mainly in the galactic disk, Population II stars mostly reside in the central bulge of the galaxy and in the halo surrounding this bulge.Population II stars date to the ...
This would be an example of our human-centered biases. Although many of them do resemble the Milky Way, others come in wildly different shapes and forms. You've probably seen illustrations of our home galaxy hanging on the walls in countless science classrooms. But we bet you didn't know ...
The distance between our galaxy, known as the Milky Way, and all others is increasing. In fact, all galaxies are moving away from one another, evidence that the universe is expanding. It is not the galaxies themselves that are expanding but the space between them. What is happening is ...
There are more than 200 billion (十亿) stars in our galaxy, called the Milky Way, and our Sun is only one of them. But scientists have discovered many other galaxies in the universe. They are a long way away and their light has travelled for many years to reach u...
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When the monster back hole at the center of the Milky Way galaxy belched out an exceptionally high number of powerful X-ray flares last year, it made astronomers wonder — is this a sign that the beast chowed down on a passing gas cloud, or is this lack of cosmic etiquette typical for...
Finally, we have interactions. In this type of encounter, the galaxies exchange gas and dust, but don’t actually collide.Many astronomers believe that the trail of gas and dust that stretches from our Milky Way Galaxy to one nearby is the result of an interaction when the gravitational force...