Could life exist in a globular cluster?
Hence the halo region of the Milky Way galaxy, including globular cluster members, are unlikely to host habitable terrestrial planets. In spite of the lower likelihood of giant planet formation, just such an object has been found in the globular cluster Messier 4.
What would the night sky look like in a star cluster?
In a typical position in a globular cluster (maybe halfway between center and edge), there’d be many more bright stars in the sky due to the star density. These would be distributed unevenly in the sky, with more light coming from the center of the globular cluster.
What star clusters are visible?
Star clusters visible to the naked eye include the Pleiades, Hyades, and 47 Tucanae.
What is thought to be at the center of the Milky Way galaxy?
The Galactic Center (or Galactic Centre) is the rotational center of the Milky Way galaxy; it is a supermassive black hole of 4.100 ± 0.034 million solar masses, which powers the compact radio source Sagittarius A*.
Is in the Centre of Milky Way galaxy?
We live in the Milky Way Galaxy, which is a collection of stars, gas, dust, and a supermassive black hole at it’s very center. Our solar system is in the Orion arm, and we are about 25,000 light years (2.5 X 10^17 miles) from the very center of the Galaxy.
Do galaxies move faster than light?
All the galaxies in the Universe beyond a certain distance appear to recede from us at speeds faster than light. They only appear to move faster than light if we insist on a purely special relativistic explanation of redshift, a foolish path to take in an era where general relativity is well-confirmed.
How did we infer our position within the Milky Way galaxy?
“There is no short answer to this question, because astronomers have followed many lines of evidence to determine the location of the solar system in the Milky Way. That observation indicates that our Milky Way Galaxy is a flattened disk of stars, with us located somewhere near the plane of the disk.
Are we moving at the speed of light?
In total, we all move at the total speed of light, c, through spacetime, with the speed spread between space and time. We can’t go faster than light through space. And we neither can go faster nor slower than light through spacetime. It’s the constant speed of everything in the fabric of spacetime.