WebIn fact, the sky is filled with galaxies, all of them, except for Andromeda and the Magellanic Clouds, too faint to see with the naked eye—more than 2 trillion (2000 billion) galaxies in the observable universe, each one with about 100 billion stars. The estimated distance of the Andromeda Galaxy from our own was doubled in 1953 when it was discovered that there is another, dimmer type of Cepheid variable star. In the 1990s, measurements of both standard red giants as well as red clump stars from the Hipparcos satellite measurements were used to calibrate the Cepheid distances.

EarthSky What is the Milky Way? It’s our home galaxy

WebJan 10, 2024 · Astronomers estimate that Andromeda will collide with the Milky Way in 4 billion years, with the merger concluding 6 billion years from now. By that time, the sun will have swollen into a red... WebSep 20, 2024 · Astronomers Have Seen Signs of “Life” at the Center of Messier 110. Located in the constellation Andromeda, M110 was discovered in 1773 by Charles Messier. It is a satellite galaxy of the … parking fiscalité

What do we know about the Andromeda galaxy?

WebThe Milky Way galaxy and the Andromeda galaxy are moving towards each other on a collision course. It will take millions of years for both to collide. Scientists think that the black holes within the Andromeda and Milky Way galaxy will combine, but they do not know how this will affect the rest of the galaxy. WebApr 17, 2024 · It is almost a certainty that the Andromeda Galaxy contains millions or even billions of planets orbiting around its many stars, however, none of them have been fully confirmed. Finding planets outside the … WebDec 30, 2024 · There's nothing to indicate that the galaxy can't contain alien life forms or planets orbiting any of the many stars that the galaxy contains. The galaxy is a … time zones and medication