Timeline of space exploration

This is a timeline of space exploration including notable achievements and first accomplishments or major events in humanity's exploration of outer space.
== Antiquity ==
* Ca. 750 BC - The Babylonians discover an 18.6 year cycle in the rising and setting of the Moon.
* 585 BC - Thales first predicts a solar eclipse
* 467 BC - Anaxagoras describes the sun as a fiery mass larger than the Peloponnese. He also found that the moon shines due to reflected light from the Sun.
* 270 BC - Aristarchus of Samos proposes the heliocentric model
* 164 BC - First recorded observation of Halley's Comet
* 4 BC - Shi Shen made the earliest known observations of sunspots, and is also believed to have cataloged 809 stars in 122 constellations.
* 140 AD - Ptolemy publishes his star catalogue, listing 48 constellations
* 400 AD - Surya Siddhanta gives the length of a sidereal year only 1.4 seconds off
* 499 AD - Aryabhata propounds a heliocentric solar system of gravitation, where the planets spin around their axes and follow elliptical orbits around the sun
== Middle ages ==
* 628 AD - Brahmagputa first recognizes gravity as a force of attraction, and briefly describes the second law of gravitation
* 830 AD - Zij Al-Sindh is publicated, containing tables for the movements of the Sun, the Moon and the FIve planets known at the time
* 850 AD - Al-Farghani corrects the values for the obliquity of the ecliptic, the precessional movement of the apogees of the sun and the moon, and the circumference of the Earth.
* 928 AD - The earliest surviving astrolabe is constructed by Mohammed al-Fazari.
* 1006 AD - SN 1006 is the brightest recorded supernova on Earth.
* 1054 AD - Chinese astronomers witness SN 1064.
* 1150 AD - Bhaskara II, calculated the latitudes and longitudes of the planets
== Renaissance ==
* 1543 AD - Nicolaus Copernicus publishes the Heliocentric theory.
* 1572 AD - SN 1572 is observed by Tycho Brahe, who proves that is traveling beyond Earth's atmosphere and therefore provides the first evidence that the heavens can change.
* 9 October 1604 AD - Johannes Kepler observes a Supernova.
* 1608 AD - Dutch eyeglass maker Hans Lippershey invents the refracting telescope.
* 1609 AD - Johannes Kepler announces his three laws of planetary motion, replacing the circular orbits of Pluto with elliptical ones.
* 1610 AD - Galileo discovers the four Jupiter moons proving not everything orbits the Earth.
* 26 November 1610 AD - Nicolas-Claude Fabri de Peiresc discovers the Orion Nebula
* 1655 AD - Christian Huygens discovers Titan and Saturn's rings.
* 1687 AD - Sir Issac Newton establishes the theory of gravitation and laws of motion (continue 3:13)
* 1705 AD - Edmond Halley calculates that the comets recorded at 76-year intervals from 1456 to 1682 are one and the same, the comet has been named in his honor.
* 
== 19th century ==
== Modern ages ==
== External links ==
* https://www.archive.org/details/timeline-of-space-exploration 
Category:Space exploration
Category:Timeline