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The ocean science community has made tremendous progress in learning about the creatures of the deep. But there’s still so much to learn. These sea animals continue to evade our knowledge. I mean seriously, please research anglerfish, everything about them is insane—and scientists have rarely recorded them in their natural habitat. With Extreme Ocean: Exploring the Deep, National Geographic Explorer and ocean engineer Grace Young is going to take a crack at uncovering some of the ocean’s great unknown at the Grosvenor Auditorium. Young has lived like a mermaid in her quest to learn about and protect the water and its teeming sea life: She spent 15 days living underwater in the Aquarius Reef Base as the youngest aquanaut on Fabien Cousteau’s Mission 31, the longest science expedition to take place there. She’ll showcase the incredible photos of the marine life she’s encountered in her time under the sea and discuss how the technology she’s developing, including underwater robots and camera systems, is changing how we explore the deep. Read more>>> The talk begins at 7:30 p.m. at the Gilbert H. Grosvenor Auditorium, 1600 M St. NW. $25. (202) 857-7700. nationalgeographic.org/dc. (Kayla Randall)

OH AND ALSO

Multi-platinum pop singer Andy Grammer performs at 9:30 Club. 7 p.m. at 815 V St. NW. $31.

Become immersed in a full-scale reflection of the neo-classical hotel room from the penultimate scene of 2001: A Space Odyssey at the National Air and Space Museum‘s 2001: A Space Odyssey Immersive Art Exhibit. 10 a.m. to 5:30 p.m. at Independence Avenue and 6th Street SW. Free.

Humor essayist Sloane Crosley speaks at Sixth & I Historic Synagogue about her new collection of 16 witty, observational essays. 7 p.m. at 600 I St. NW. $15–$40.

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