The Merger That Led to the Formation of the Milky Way
ESA’s Gaia mission has made a major breakthrough in unraveling the formation history of the Milky Way. Instead of forming alone, our Galaxy merged with…
ESA’s Gaia mission has made a major breakthrough in unraveling the formation history of the Milky Way. Instead of forming alone, our Galaxy merged with…
There are about 4433 exoplanets in the latest catalogs. Their radii have generally been measured by knowing the radius of their host star and then…
A team led by researchers from the Institute of Cosmos Sciences of the University of Barcelona (ICCUB, UB-IEEC) and the University of Groningen has discovered,…
Apart from a billion Milky Way stars, ESA’s Gaia spacecraft also observes extragalactic objects. Its automated alert system notifies astronomers whenever Gaia spots a transient…
The North Star, Polaris, is a Cepheid variable: one whose mass, age and physical conditions generate periodic oscillations with a period proportional to the star’s…
The mass of a very young exoplanet has been revealed for the first time using data from the European Space Agency’s star mapping spacecraft Gaia…
Using the power and synergy of two space telescopes, astronomers have made the most precise measurement to date of the universe’s expansion rate. The results…
University of Groningen astronomers have discovered relics of merger events in the Milky Way halo. Five small groups of stars appear to represent mergers with…
Astronomers used data from Hubble Space Telescope and ESA’s Gaia satellite to directly measure the 3D motions of individual stars in a nearby galaxy, achieving…
The movements of more than 300,000 stars surveyed by ESA’s Gaia satellite reveal that rare close encounters with our Sun might disturb the cloud of…
New research from the Gaia-ESO Survey shows that the inner regions of the Milky Way assembled faster than the outer regions, revealing that the Milky…
Set to launch on November 20th, ESA’s Gaia spacecraft will create a highly accurate 3D map of the Milky Way Galaxy by repeatedly observing a…