The Whirlpool galaxy (M51) is a classic grand spiral galaxy. It was the first object identified as a spiral, way back in 1845 ...
Artistic illustration of how the Milky Way’s disc may have shifted by more than 90 degrees. The faint outline shows its possible former orientation, while the surrounding stellar halo preserves clues ...
New research suggests the Milky Way's disc flipped after a head-on collision with Gaia-Sausage-Enceladus. The finding may ...
Mysterious high-speed "bullets"—clumps of possibly oxygen-rich gas traveling at up to 20 million miles per hour—have been ...
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