Today in the History of Astronomy | Astronomy.com

Today in the History of Astronomy

Nov. 17, 1966: A phenomenal Leonid meteor storm

Today in the History of Astronomy

Nov. 16, 1974: Arecibo sends a message

Robotic Spaceflight, Today in the History of Astronomy

Nov. 15, 1988: The Buran orbiter launches

Robotic Spaceflight, Today in the History of Astronomy

Nov. 14, 2012: NASA announces an extended mission for Kepler

Robotic Spaceflight, Today in the History of Astronomy

Nov. 13, 1971: Mariner 9 orbits Mars

Today in the History of Astronomy

Nov. 12, 2014: The Philae lander touches down on a comet

Slipher stands with the Brashear spectrograph, mounted on the 24-inch Clark Telescope, with which he made his many spectroscopic discoveries — including his observations of multiple spiral nebulae, most of which were rushing away from Earth at great speed, signaling the expansion of the universe.

Today in the History of Astronomy

Nov. 11, 1875: The birth of V.M. Slipher

Today in the History of Astronomy

Nov. 10, 1861: The birth of Robert Innes

Today in the History of Astronomy

Nov. 9, 1939: The birth of Carl Sagan

Today in the History of Astronomy

Nov. 8, 1656: The birth of Edmond Halley

Today in the History of Astronomy

Nov. 7, 1882: A Great Comet transforms astrophotography

Today in the History of Astronomy

Nov. 6, 1919: Einstein is right