Wikipedia:Main Page history/2022 August 30b

From Wikipedia, the free encyclopedia

Welcome to Wikipedia

,
6,546,181 articles in English

From today's featured article

Judith Resnik

Judith Resnik (1949–1986) was an American electrical, software and biomedical engineer, pilot and astronaut who died in the Space Shuttle Challenger disaster in January 1986. Resnik was the fourth woman and second American woman to fly in space, logging 145 hours in orbit. With a PhD in electrical engineering, she worked for RCA as an engineer on Navy missile and radar projects, and for Xerox as a senior systems engineer. She published research on special-purpose integrated circuitry. At age 28, she was selected by NASA as a mission specialist in the first NASA astronaut group to include women. While training she developed software and operating procedures for NASA missions. Her first space flight was the STS-41-D mission, the maiden voyage of Space Shuttle Discovery which launched on August 30, 1984, during which her duties included operating the orbiter's robotic arm. Her second shuttle mission was STS-51-L aboard Challenger. She died when it broke up shortly after liftoff. (Full article...)

Did you know ...

Winifred Brown
Winifred Brown

In the news

Mikhail Gorbachev in 1987
Mikhail Gorbachev

On this day

August 30: Victory Day in Turkey (1922)

Michael Schumacher
Michael Schumacher
More anniversaries:

Today's featured picture

Plate 5 of Ignace-Gaston Pardies's celestial atlas

Ignace-Gaston Pardies (1636–1673) was a French Catholic priest and scientist. His celestial atlas, entitled Globi coelestis in tabulas planas redacti descriptio, comprised six charts of the night sky and was first published in 1674. The atlas uses a gnomonic projection so that the plates make up a cube of the celestial sphere. The constellation figures are drawn from Uranometria, but were carefully reworked and adapted to a broader view of the sky. This is the fifth plate from a 1693 edition of Pardies's atlas, featuring constellations including Lyra, Cygnus, Hercules, Ophiuchus, Sagittarius and Scorpius, Aquila, Delphinus, and Corona Australis, as well as Antinous, an obsolete constellation. All of these are visible in the Northern Hemisphere, though a few cross the boundary from the northern sky into the southern sky.

Map credit: Ignace-Gaston Pardies

Other areas of Wikipedia

  • Community portal – The central hub for editors, with resources, links, tasks, and announcements.
  • Village pump – Forum for discussions about Wikipedia itself, including policies and technical issues.
  • Site news – Sources of news about Wikipedia and the broader Wikimedia movement.
  • Teahouse – Ask basic questions about using or editing Wikipedia.
  • Help desk – Ask questions about using or editing Wikipedia.
  • Reference desk – Ask research questions about encyclopedic topics.
  • Content portals – A unique way to navigate the encyclopedia.

Wikipedia's sister projects

Wikipedia is written by volunteer editors and hosted by the Wikimedia Foundation, a non-profit organization that also hosts a range of other volunteer projects:

Wikipedia languages