Thousands rally in New York, other cities over climate concerns

People marched during a rally against climate change in New York.

Eduardo Munoz/REUTERS

The marches in cities around the world come two days before a UN climate summit.

In this artist concept provided by NASA, the MAVEN spacecraft approaches Mars on a mission to study its upper atmosphere.

NASA’s Maven explorer arrives at Mars after year

Now the real work begins for the $671 million mission.

Latest Nation headlines

Alleged intruder at White House had 800 rounds in car

The man had also been arrested earlier in the summer in Virginia with a carful of weapons, authorities said.

Support for gay marriage may be leveling off, new poll shows

The new poll found a 5 percentage point drop since February in Americans who want legal recognition for same-sex relationships.

Obama ‘obviously concerned’ about intruder, spokesman says

The Secret Service is reviewing its policies, technical enhancements, and staffing levels in response to Friday’s intruder.

More Nation headlines

JFK: 50 Years Later

Special section

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A five-part series examining the profound impact of former President John F. Kennedy’s assassination.

Globe Investigations

Special section

//c.o0bg.com/rf/image_90x90/Boston/2011-2020/2013/10/01/BostonGlobe.com/Special/Images/magnifying_glass1500618-081--90x90.jpg Recent investigative reports

Read recent stories and ongoing investigations from the Globe’s journalists.

Gay marriage in the US

Interactive Graphic

//c.o0bg.com/rf/image_90x90/Boston/2011-2020/2013/08/01/BostonGlobe.com/National/Images/Untitled-12.jpg How same-sex marriage laws evolved

In the early 1970s, there were zero states banning or allowing same-sex marriage, and no states offered civil unions or domestic partnerships.

Instagram

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A live stream of Instagram posts from The Boston Globe photo department.