Editing 1993 in science (section)

==Astronomy and space exploration==
* February 13 – [[Asteroid]] [[7253 Nara]] is discovered by [[Fumiaki Uto]].
* December 2 – [[STS-61]] is launched. This [[Space Shuttle]] mission to the [[Hubble Space Telescope]] (HST) installs corrective optics, plus upgrades, that not only allow the telescope to focus properly, but also increase magnification/clarity beyond the original design. HST had been pre-designed for such [[continuous improvement]].
* The first definite [[asteroid moon]] is confirmed when the [[Galileo probe]] discovers Dactyl orbiting [[243 Ida]].<ref>{{cite journal|last=Chapman|first=Clark R.|title=S-Type Asteroids, Ordinary Chondrites, and Space Weathering: The Evidence from Galileo's Fly-bys of Gaspra and Ida|journal=Meteoritics|volume=31|pages=699–725|date=October 1996|issue=6 |bibcode=1996M&PS...31..699C|doi = 10.1111/j.1945-5100.1996.tb02107.x}}</ref>