In Photos: The Best Signs from the 2017 March for Science
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Marching on Washington
Scientists and science allies are gathering today (April 22) in Washington, D.C., and in hundreds of cities around the world, for the 2017 March for Science. Marchers are voicing support for scientists and safeguards to the scientific community. [See live updates from the March for Science]
Here are some scenes from the 2017 March for Science.
Earth is melting
People called attention to the reality of climate change during the March for Science in New York City.
Frizzle 2020
Would you vote for Ms. Frizzle? This woman showed her support for science (and "The Magic School Bus") in New York City.
Silicon Valley science
Two kids hold a sign of a giant beaker with real smoke coming out at the March for Science in Silicon Valley.
Build spaceships
Paige Campbell (left), 20, a meteorology and astrophysics student at Pennsylvania State University and Madison Littin (right), 20, a meteorology student, both took one of three buses from State College, Pennsylvania, to Washington, D.C. to take part in the March for Science.
Fighting for biodiversity
Collette Adkins (right), a senior attorney at the Center for Biological Diversity, brought her two kids to the March for Science in Washington, D.C.
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Science not silence
The March for Science in New York City ended in Times Square. The NYPD estimates 40,000 people participated in the march.
Science is real
Many kids took part in the March for Science in Washington, D.C. and elsewhere around the world.a
Politicians need science
The marchers protested against policies enacted by the Trump administration that disregard science.
The Science Guy
Bill Nye joined the March for Science in Washington, D.C.
Half lives matter
Marchers in San Francisco turned out to emphasize the importance of science and to support scientists in the U.S. and around the world.

Denise Chow was the assistant managing editor at Live Science before moving to NBC News as a science reporter, where she focuses on general science and climate change. Before joining the Live Science team in 2013, she spent two years as a staff writer for Space.com, writing about rocket launches and covering NASA's final three space shuttle missions. A Canadian transplant, Denise has a bachelor's degree from the University of Toronto, and a master's degree in journalism from New York University.
