On This Day in History
Astronomers detect an exoplanet's atmosphere
2001Astronomers announced the detection of sodium in the atmosphere of the extrasolar planet HD 209458 b, the first exoplanet atmosphere to be measured. (HD 209458 b)
Also on this day
- 1945 CARE is founded — A consortium of 22 U.S. charities founded CARE to deliver food aid to Europe in the aftermath of the Second World War.
- 1999 Helen Clark becomes prime minister of New Zealand — The Labour Party defeated New Zealand's governing National Party, and Labour's Helen Clark became the country's first woman prime minister to have won the office at an election.
- 2009 Lady Gaga opens The Monster Ball Tour — Lady Gaga performed the first concert of The Monster Ball Tour, later the highest-grossing tour for a debut headlining artist.