Do Galaxies Collide Often? Do galaxies collide often? The distance between neighboring stars (at our position in the Milky Way Galaxy) is approximately equal to 10 million times the diameter of a star. By contrast, galaxies collide with each other quite frequently. How often do galaxy collisions occur? One study found that large galaxies merged
What Does Cosmic Background Radiation Tell Us About The Universe? What does cosmic background radiation tell us about the universe? Big Bang What evidence does cosmic background radiation provide? The Cosmic Background radiation provides evidence of the Big Bang Theory. What is cosmic microwave background and what is its significance to the study of the
Did Einstein Believe In A Static Universe? Did Einstein believe in a static universe? the universe is expanding What is Einstein’s static universe theory? Einstein’s static universe, aka the Einstein universe or the Einstein static eternal universe, is a relativistic model of the universe proposed by Albert Einstein in 1917. Shortly after completing the general
Do Elliptical Galaxies Form Stars? Do elliptical galaxies form stars? Very little star formation is thought to occur in elliptical galaxies, because of their lack of gas compared to spiral or irregular galaxies. Why do elliptical galaxies not form stars? Whilst spiral galaxies have rich reservoirs of the dust and gas that fuel star formation,
Do Other Solar Systems Look Like Ours? Do other solar systems look like ours? planetary systems Are there other solar systems like ours in the universe? Our planetary system is the only one officially called “solar system,” but astronomers have discovered more than 3,200 other stars with planets orbiting them in our galaxy. That’s just
Do We Live In A Binary Star System? Do we live in a binary star system? For some time now, astronomers have known that the majority of systems in our galaxy consist of binary pairs rather than individual stars. What’s more, in recent decades, research has revealed that stars like our Sun are actually born
Do We Live In A Galaxy Or Universe? Do we live in a galaxy or universe? We live on a planet called Earth that is part of our solar system. But where is our solar system? It’s a small part of the Milky Way Galaxy. A galaxy is a huge collection of gas, dust, and
How Long To Travel To M87? To observe the heart of the M87 galaxy, the collaboration linked eight telescopes around the world to create a virtual Earth-sized telescope, the EHT. The impressive resolution obtained with the EHT is equivalent to that needed to measure the length of a credit card on the surface of the
How Long To Travel To Andromeda? The Andromeda Galaxy is speeding toward us, but it will take 4 billion years to get here. Will we ever be able to travel to Andromeda? The technology required to travel between galaxies is far beyond humanity’s present capabilities, and currently only the subject of speculation, hypothesis, and science
How Long For Light To Travel Across Milky Way? The disk of our home galaxy – the Milky Way – is bigger than we previously thought. A new study shows it would take 200,000 years for a spaceship traveling at the speed of light to go across the entire galaxy. How long would it take