Astronomy Events

1609 Aug 21 Galileo Demonstrates His Telescope to Venetian Lawmakers
"Galileo Galilei, a most humble servant of Your Serene Highness, being diligently attentive, with all his spirit, not only to discharging the duties pertaining to the lecturing of mathemat..." —Galileo Galilei, to the Doge of Venice
1930 Feb 18 Pluto Discovered by Clyde W. Tombaugh
In the 1840s, using Newtonian mechanics, Urbain Le Verrier predicted the position of the then-undiscovered planet Neptune after analysing perturbations in the orbit of Uranus. Subsequent ...
1934 Nov 9 Carl Sagan is Born
Carl Edward Sagan was an American astronomer, astrophysicist, cosmologist, author, science popularizer, and science communicator in astronomy and natural sciences. He spent most of his ca...
1959 Sep 14
11:02PM
Luna 2 Becomes First Spacecraft to Reach Moon
After an aborted launch on 9 September, the Ye-1A probe successfully lifted off and reached escape velocity three days later. Officially named the Second Soviet Cosmic Rocket, the spacecr...
1962 Aug 27 Launch of Mariner 2 Space Probe
Mariner 2 was the first successful mission to another planet by any country. Launched just 36 days after the failure of its twin, Mariner 1, it flew by Venus as planned at a range of 34,7...
1984 Nov 20 SETI Institute is Founded
Founded in November 1984, the SETI Institute began operations on February 1, 1985. Today it employs over 150 scientists, educators and support staff. Research at the Institute is anchored...
2009 Sep 9 NASA Releases First Images from Newly-Repaired Hubble Telescope
With a flourish of new images - from exploding stars to colliding galaxies and a new impact scar on Jupiter - NASA officials finally pulled the wraps off the newly refurbished Hubble Spac...
2011 Sep 15 Astronomers Announce Discovery of Potentially Inhabitable Planet
Astronomers say they have discovered 50 new planets, including 16 “super Earths and Neptune-type planets” orbiting near their stars. This is by far the largest number of such planets ever...
2011 Nov 11 NASA Assures Public That Solar Flares Won't Destroy Earth
If the world ends in 2012, the sun won't be to blame, NASA officials say. Contrary to what some doomsayers would have you believe, our star isn't capable of blasting out a solar flare ...
2011 Nov 26 NASA Launches Mars Rover Curiosity
The world's biggest extraterrestrial explorer, NASA's Curiosity rover, rocketed toward Mars on Saturday on a search for evidence that the red planet might once have been home to itsy-bits...