On This Day: November 27th

Syrian rebel groups led by Hay'at Tahrir al-Sham launch a ground offensive into Syria.

Iran's top nuclear scientist, Mohsen Fakhrizadeh, is assassinated near Tehran.

Days after the announcement of its discovery, the Utah monolith is removed by recreationists.

An active shooter inside a Planned Parenthood facility in Colorado Springs, Colorado, shoots at least four police officers. One officer later dies. Two civilians are also killed, and six injured. The shooter later surrendered.

Nevsky Express bombing: A bomb explodes on the Nevsky Express train between Moscow and Saint Petersburg, derailing it and causing 28 deaths and 96 injuries.

XL Airways Germany Flight 888T: An Airbus A320 performing a flight test crashes near the French commune of Canet-en-Roussillon, killing all seven people on board.

The House of Commons of Canada approves a motion introduced by Prime Minister Stephen Harper recognizing the Québécois as a nation within Canada.

Pope John Paul II returns the relics of Saint John Chrysostom to the Eastern Orthodox Church.

Blackwater 61 crash: A CASA C-212 Aviocar crashes into the Koh-i-Baba mountain range in Afghanistan, killing six.

A hydrogen atmosphere is discovered on the extrasolar planet Osiris by the Hubble Space Telescope, the first atmosphere detected on an extrasolar planet.