One large Milky Way galaxy or many galaxies? 100 years ago, a young Edwin Hubble settled astronomy’s ‘Great Debate.’
In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small ...
Hosted on MSN2mon
Extremely rare 'failed supernova' may have erased a star from the night sky without a trace
Astronomers have watched a massive star vanish in the night sky, only to be replaced by a black hole. The supergiant star M31-2014-DS1, which has a mass 20 times greater than the sun and is ...
Forbes4y
How You Can Look 2.5 Million Years Back In Time By Finding The Andromeda Galaxy With Your Naked Eyes
However, any pair of binoculars will help you pick-out M31 rather easily from underneath any kind of urban sky. So here’s how you do it—by finding the halfway point between two bright stars ...
Forbes2y
The Most Distant Stars In Our Galaxy Are Halfway To Andromeda, Say Scientists
Jamie Carter is an award-winning reporter who covers the night sky. A new study claims to have ... very large and very close galaxy. Also called M31—and our closest giant neighboring galaxy ...
The Jerusalem Post Blogs1mon
After 10 years and 1,000 orbits, Hubble's mosaic reveals 200 million stars in Andromeda
The Andromeda Galaxy, also known as Messier 31 or M31, is a barred spiral galaxy similar ... apparent diameter of the full Moon in the night sky. The southern region of the Andromeda Galaxy ...
Hackaday4y
Open Source Telescope Controller Puts Smart Features In Old Telescopes
This project might help: OnStep is an open-source telescope controller, a device that controls a telescope to point at something interesting in the sky. Want to take a look at M31? Use an app on a ...
Phys.org27d
One large Milky Way galaxy or many galaxies? 100 years ago, Edwin Hubble settled astronomy's 'Great Debate'
The Andromeda nebula, M31, was a prominent example. It's visible to the naked eye from a dark site. The Andromeda galaxy, then known as the Andromeda nebula, is a bright spot in the sky that ...