Space and Astronomy Atlas

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The Calendar

Wednesday 11 February 2026

What the atlas records for this date, across the traditions it covers.

The Day BeforeTodayThe Day AfterAll Of February 2026

The atlas records no observance on this date. That is not the same as nothing being observed: many of its holidays follow calendars whose rules have not been written down here yet.

This Week In Space and Astronomy History

12 FebruaryVenera 1, Launch Date 1961
12 FebruaryVenera Program, Launch Date 1961
13 FebruaryVega, First Flight Date 2012
14 FebruaryDelta II, First Flight Date 1989
14 FebruaryLuna 20, Launch Date 1972
15 FebruaryIM-1 Mission, Launch Date 2024
15 FebruaryLong March 3B, First Flight Date 1996
15 FebruaryOdysseus, Launch Date 2024
17 FebruaryNEAR Shoemaker, Launch Date 1996
17 FebruaryRanger 8, Launch Date 1965
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Dates for the Hebrew and Islamic calendars are the tabular reckoning, which is what a printed calendar prints. Communities that begin a month on a sighted crescent may differ by a day, and differ from one another by place.