Calendarby GlyphHistory · Anniversaries
25th anniversary: Astronomers announced the detection of sodium in the atmosphere of the...
Fri, November 27, 2026
in 18 days
In 2001, Astronomers announced the detection of sodium in the atmosphere of the extrasolar planet HD 209458 b (artist's impression pictured), the first exoplanet atmosphere to be measured.
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- Wikipedia "On this day" selected anniversary, 25 years (2001 to 2026).
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