The Star That Proved the Universe Is Bigger Than We Imagined
Pinpointing a Milepost Marker Star that Opened the Realm of Galaxies At the dawn of the 20th century, astronomers faced a ...
One Large Milky Way Galaxy Or Many Galaxies? 100 Years Ago, A Young 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 ...
Smithsonian Magazine2d
Astronomers Discover Supersonic Winds on a ‘Puffy’ Exoplanet, Forming a Record-Breaking Jet Stream
Moving at roughly 20,505 miles per hour along the distant world's equator, it’s the fastest known jet stream that wraps ...
earth2d
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 ...