A woman's place
The rain didn't dampen the spirits of marchers in Washington, D.C.
Richard Longland, a nuclear physicist at North Carolina State University, and his wife Julie Miranda Longland, an entomologist who works for an agricultural company in North Carolina, dressed up as Beaker and Bunsen.
"I have a more a more immediate reason — the selfish reason [for marching] is I get funding from the Department of Energy, which is now headed by Rick Perry, who didn’t even know what the Department of Energy was, which is a little unfair of me to pick on Rick Perry but he's a sign of a bigger problem, putting people in charge of things that have no respect for them, that want to dismantle them," Richard Longland told Live Science.
"I'm marching to show people the importance of science; people will see all these people here who support science. I'm not trying to change people's minds with it." Longland said. "I think it’s exciting that people from different scientific backgrounds can get together and support each other," he added.
Marchers in Washington had a special message for the Trump administration.
Marchers celebrate pioneering female scientists while standing in front of the Andrew W. Mellon Auditorium in Washington, D.C.
Against alternative facts
A woman holds a sign that reads, "Science is not an alternative fact" during the March for Science in Berlin, Germany.
Marchers show their support for science and call attention to climate change in Berlin, Germany.
Marching in Boston
Hundreds of community members from Harvard University and MIT march across the Massachusetts Avenue Bridge to join the March for Science at the Boston Common on April 22, 2017 in Boston, Massachusetts.
Marchers showed their love for space science in New York City.
Albert Einstein is back? The genius physicist made a (cardboard) appearance at the March for Science in New York City.
A marcher calls attention to rising sea levels during the March for Science in Los Angeles.
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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.