Gaia reveals the center of the Milky Way galaxy
Today’s Video of the Day from the European Space Agency shows the galactic bar at the center of the Milky Way galaxy like we have never seen it before.
The second release of data from the Gaia star-mapping satellite has provided scientists with the first direct measurement of the bar-shaped collection of stars.
“We know the Milky Way has a bar, like other barred spiral galaxies, but so far we only had indirect indications from the motions of stars and gas, or from star counts in infrared surveys. This is the first time that we see the galactic bar in three-dimensional space, based on geometric measurements of stellar distances,” said Gaia astrophysicist Friedrich Anders.
Video Credit: European Space Agency