Gaia - MessageToEagle.com

Our galaxy, the Milky Way, is surrounded by about fifty dwarf galaxies. Most of these galaxies are only identifiable through telescopes and have been named after the constellation in which they appear on the sky (for example, Draco, Sculptor or Leo). However, the two most obvious dwarf galaxies are called the Large Magellanic Cloud (LMC) and the Small Magellanic Cloud (SMC), and these are easily visible to the unaided eye. Traditionally these dwarf galaxies have been thought of as satellites in orbit around the Milky Way for many billions of years. Now, however, new data from ESA’s Gaia spacecraft have shown that the majority of the dwarf galaxies are passing the Milky Way for the first time. This forces astronomers to reconsider the history of the Milky Way and how it formed, along with the nature and composition of the dwarf galaxies themselves. Credit: ESA/Gaia/DPAC, CC BY-SA 3.0 IGO

Most Milky Way Companion Galaxies Are Newcomers To Our Corner Of Space – Gaia Reveals

MessageToEagle.com | November 25, 2021

Eddie Gonzales Jr. – MessageToEagle.com – Data from ESA’s Gaia mission is re-writing the history of our galaxy, the Milky Way. What had traditionally been thought of as

Astronomy

ESA’s Gaia Satellite Reveals New Speeds For Milky Way-Andromeda Collision

MessageToEagle.com | February 8, 2019

MessageToEagle.com – It has long been suspected that Andromeda will one day collide with the Milky Way, completely reshaping our cosmic neighborhood. ESA’s Gaia satellite has now looked beyond

An enormous ‘ghost’ galaxy lurking on the outskirts of the Milky Way. Image credit: University of Cambridge

Astronomy

Hidden Antlia 2: Gigantic Galactic Dwarf Satellite As Big As Large Magellanic Cloud – Discovered

MessageToEagle.com | November 13, 2018

MessageToEagle.com – The massive object named Antlia 2 (or Ant 2) has been discovered by an international team of astronomers searching through ESA’s Gaia satellite data. The object has

An impression of the encounter between the Milky Way galaxy and the smaller Sausage galaxy about 8 billion to 10 billion years ago. The record of this ancient encounter is still preserved in the velocities and chemistry of the stars.Credit: V. Belokurov (Cambridge, UK); based on image by ESO/Juan Carlos Muñoz

Astronomy

Unknown Dwarf Galaxy Crashed Into Milky Way Around 8 Billion Years Ago

MessageToEagle.com | July 8, 2018

MessageToEagle.com – Astronomers has discovered an ancient and dramatic head-on collision between the Milky Way and a smaller object, dubbed the “Sausage” galaxy. This cosmic crash that happened in

Earth Changes

‘Gaia Puzzle’: Scientists Propose A Solution

MessageToEagle.com | July 3, 2018

MessageToEagle.com – Scientists may have solved a long-standing puzzle over why conditions on Earth have remained stable enough for life to evolve over billions of years. The ‘Gaia’ hypothesis

Tag: Gaia