ESA’s Gaia Spacecraft Wraps Up Revolutionary Milky Way Mapping Mission
ESA’s decade-long Milky Way Gaia mapping mission still has tons of data to release over the next few years. Expect surprises.
One large Milky Way galaxy or many galaxies? 100 years ago, Edwin Hubble settled astronomy's 'Great Debate'
A hundred years ago, astronomer Edwin Hubble dramatically expanded the size of the known universe. At a meeting of the ...
earth10d
Hubble's new masterpiece took 10 years and captured 200 million stars in Andromeda
Hubble Space Telescope mapped Andromeda, revealing a chaotic history shaped by mergers. A 2.5-billion-pixel mosaic shows 200 ...
The Gaia satellite, a fantastic star tracker, retires
The European satellite, launched in 2013, has exhausted its gas reserves and is preparing to return to a stable orbit before being 'passivated.' But while the data collection that revolutionized ...
200 Million-Star Tapestry: Hubble’s Astonishing New Portrait of Andromeda
The Hubble Space Telescope has provided the most detailed survey of the Andromeda galaxy, revealing new clues about its ...
7 breathtaking images of Milky Way captured by NASA
This stunning image of NGC 6951 is captured by NASA's Hubble Telescope. It is a barred spiral galaxy located in the constellation Cepheus. It is located at a distance of about 75 million light-years ...
Mapping 2 billion stars: How Gaia transformed our view of the Milky Way
Gaia was launched on December 19, 2013, and began scanning the stars in July 2014. It mapped over two billion stars, ...
Smithsonian Magazine11d
Check Out the Hubble Space Telescope’s Stunning New View of the Andromeda Galaxy
The full image includes some 2.5 billion pixels compiled from observations spanning more than 1,000 orbits around Earth ...
'13.8 billion years unraveled': Hubble's discovery set the stage for the biggest mystery yet
Hubble's discovery of expanding galaxies confirmed the universe's vastness, laying the foundation for the Big Bang theory and ...
USA Today11d
'Enticing empire of stars:' See Andromeda galaxy in newly released NASA images
About 100 years after astronomer Edwin Hubble's discovered the "magnificent" spiral nebula ... 2.5 million light-years away from the Milky Way. The observations recorded by Hubble yield new ...
It took a decade for NASA to piece together this 416,592,960 pixel image of the Andromeda galaxy and the key takeaway? 'Andromeda's a train wreck'
"It looks like it has been through some kind of event that caused it to form a lot of stars and then just shut down” ...
Times Union9d
One large Milky Way galaxy or many galaxies? 100 years ago, a young Edwin Hubble settled astronomy’s ‘Great Debate’
Shapley argued that the spiral nebulae were small and in the Milky Way, while Curtis took a more radical position that they were independent galaxies, extremely large and distant. At the time ...