NASA's Earth Dome is seen at Union Station, Monday, April 22, 2013 in Washington. The Earth Dome housed two of NASA's Science Gallery exhibits as part of a NASA-sponsored Earth Day event at Union Station. Photo Credit: (NASA/Carla Cioffi)
NASA's Earth Dome is seen at Union Station, Monday, April 22, 2013 in Washington. The Earth Dome housed two of NASA's Science Gallery exhibits as part of a NASA-sponsored Earth Day event at Union Station. Photo Credit: (NASA/Carla Cioffi)
A participant at a NASA-sponsored Earth Day event puts together a puzzle of the Earth, Monday, April 22, 2013 at Union Station in Washington. (Photo Credit: NASA/Carla Cioffi)
A participant at NASA's Earth Day Science Gallery Exhibit calculates his carbon footprint at the Carbon Footprint Estimator, Monday, April 22, 2013 at Union Station in Washington. The NASA Science Gallery exhibits are being sponsored by NASA in honor of Earth Day. (Photo Credit: NASA/Carla Cioffi)
Students assemble balloon race cars and Alka-Seltzer film canister rockets to demonstrate Newton's third Law of motion at the NASA Science Gallery at Union Station, Monday, April 22, 2013 in Washington. The NASA Science Gallery exhibits are being sponsored by NASA in honor of Earth Day. (Photo Credit: NASA/Carla Cioffi)
Jack Kaye, NASA Associate Director of the Earth Science Division, speaks at a NASA sponsored Earth Day event at Union Station, Monday, April 22, 2013 in Washington. Photo Credit: (NASA/Carla Cioffi)
Visitors explore NASA’s hands-on exhibits during Earth Day, Friday, April 22, 2022, at Union Station in Washington. Photo Credit: (NASA/Bill Ingalls)
Visitors explore NASA’s hands-on exhibits during Earth Day, Friday, April 22, 2022, at Union Station in Washington. Photo Credit: (NASA/Bill Ingalls)
Visitors explore NASA’s hands-on exhibits during Earth Day, Friday, April 22, 2022, at Union Station in Washington. Photo Credit: (NASA/Bill Ingalls)
Visitors explore NASA’s hands-on exhibits during Earth Day, Friday, April 22, 2022, at Union Station in Washington. Photo Credit: (NASA/Bill Ingalls)
Visitors explore NASA’s hands-on exhibits during Earth Day, Friday, April 22, 2022, at Union Station in Washington. Photo Credit: (NASA/Bill Ingalls)
Visitors explore NASA's exhibits at the Earth Day event on Monday, April 22, 2019, at Union Station in Washington, D.C. Photo Credit: (NASA/Joel Kowsky)
A view of the exhibits at NASA's Earth Day event on Thursday, April 19, 2018 at Union Station in Washington, D.C. Photo Credit: (NASA/Aubrey Gemignani)
Visitors explore NASA’s hands-on exhibits during Earth Day, Friday, April 22, 2022, at Union Station in Washington. Photo Credit: (NASA/Bill Ingalls)
Visitors explore NASA’s hands-on exhibits during Earth Day, Friday, April 22, 2022, at Union Station in Washington. Photo Credit: (NASA/Bill Ingalls)
Visitors explore NASA’s hands-on exhibits during Earth Day, Friday, April 22, 2022, at Union Station in Washington. Photo Credit: (NASA/Bill Ingalls)
Visitors explore NASA’s hands-on exhibits during Earth Day, Friday, April 22, 2022, at Union Station in Washington. Photo Credit: (NASA/Bill Ingalls)
Visitors explore NASA’s hands-on exhibits during Earth Day, Friday, April 22, 2022, at Union Station in Washington. Photo Credit: (NASA/Bill Ingalls)
A view of the exhibits at NASA's Earth Day event on Thursday, April 19, 2018 at Union Station in Washington, D.C. Photo Credit: (NASA/Aubrey Gemignani)
Visitors explore NASA’s hands-on exhibits during Earth Day, Friday, April 22, 2022, at Union Station in Washington. Photo Credit: (NASA/Bill Ingalls)
Visitors explore NASA’s hands-on exhibits during Earth Day, Friday, April 22, 2022, at Union Station in Washington. Photo Credit: (NASA/Bill Ingalls)
Visitors explore NASA's exhibits at the Earth Day event on Monday, April 22, 2019, at Union Station in Washington, D.C. Photo Credit: (NASA/Joel Kowsky)
Visitors explore NASA’s hands-on exhibits during Earth Day, Friday, April 22, 2022, at Union Station in Washington. Photo Credit: (NASA/Bill Ingalls)
Visitors explore NASA’s hands-on exhibits during Earth Day, Friday, April 22, 2022, at Union Station in Washington. Photo Credit: (NASA/Bill Ingalls)
Visitors explore NASA’s hands-on exhibits during Earth Day, Friday, April 22, 2022, at Union Station in Washington. Photo Credit: (NASA/Bill Ingalls)
Visitors explore NASA’s hands-on exhibits during Earth Day, Friday, April 22, 2022, at Union Station in Washington. Photo Credit: (NASA/Bill Ingalls)
Visitors explore NASA's exhibits at the Earth Day event on Monday, April 22, 2019, at Union Station in Washington, D.C. Photo Credit: (NASA/Joel Kowsky)
Visitors explore NASA’s hands-on exhibits during Earth Day, Friday, April 22, 2022, at Union Station in Washington. Photo Credit: (NASA/Bill Ingalls)
Todd Toth, Science Educator at NASA Goddard Spaceflight Center, conducts an experiment with students to create a cloud in a bottle, Monday, April 22, 2013 at Union Station in Washington. The NASA Science Gallery exhibits are being sponsored by NASA in honor of Earth Day. (Photo Credit: NASA/Carla Cioffi)
Michael Meyer, lead scientist for NASA's Mars Exploration Program at NASA Headquarters speaks in front of the Hyperwall at a NASA-sponsored Earth Day event at Union Station, Monday April 22, 2013 in Washington. Photo Credit: (NASA/Carla Cioffi)
Dr. Thomas Wagner, NASA Program Scientist for the cryosphere, gives a presentation on observing the Earth's Poles in front of the Hyperwall at at a NASA-sponsored Earth Day event at Union Station, Monday April 22, 2013 in Washington. Photo Credit: (NASA/Carla Cioffi)
Dr. Thomas Wagner, NASA Program Scientist for the cryosphere, gives a presentation on observing the Earth's Poles in front of the Hyperwall at at a NASA-sponsored Earth Day event at Union Station, Monday April 22, 2013 in Washington. Photo Credit: (NASA/Carla Cioffi)
Michael Meyer, lead scientist for NASA's Mars Exploration Program at NASA Headquarters speaks in front of the Hyperwall at a NASA-sponsored Earth Day event at Union Station, Monday April 22, 2013 in Washington. Photo Credit: (NASA/Carla Cioffi)
Izolda Trakhtenberg, Science Educator at NASA Goddard Spaceflight Center, conducts an experiment with students to create a cloud in a bottle, Monday, April 22, 2013 at Union Station in Washington. The NASA Science Gallery exhibits are being sponsored by NASA in honor of Earth Day. (Photo Credit: NASA/Carla Cioffi)
Visitors explore one of NASA's exhibits at the Earth Day event on Monday, April 22, 2019, at Union Station in Washington, D.C. Photo Credit: (NASA/Joel Kowsky)
Visitors view samples of different types of algae at one of NASA's exhibits at the Earth Day event on Monday, April 22, 2019, at Union Station in Washington, D.C. Photo Credit: (NASA/Joel Kowsky)
Visitors explore one of NASA's exhibits at the Earth Day event on Thursday, April 19, 2018 at Union Station in Washington, D.C. Photo Credit: (NASA/Aubrey Gemignani)
Visitors to NASA's exhibits at the Earth Day event take a picture with a globe, Monday, April 22, 2019, at Union Station in Washington, D.C. Photo Credit: (NASA/Joel Kowsky)
Visitors learn how satellites monitor the water cycle at one of NASA's exhibits at the Earth Day event on Monday, April 22, 2019, at Union Station in Washington, D.C. Photo Credit: (NASA/Joel Kowsky)
Travelers walk past NASA's exhibits at the Earth Day event held at Union Station on Monday, April 22, 2019, Washington, D.C. Photo Credit: (NASA/Joel Kowsky)
A visitor looks through virtual reality viewers at one of NASA's exhibits at the Earth Day event on Thursday, April 19, 2018 at Union Station in Washington, D.C. Photo Credit: (NASA/Aubrey Gemignani)
Some young visitors are seen at one of NASA's exhibits at the Earth Day event on Thursday, April 19, 2018 at Union Station in Washington, D.C. Photo Credit: (NASA/Aubrey Gemignani)
Visitors explore one of NASA's exhibits at the Earth Day event on Monday, April 22, 2019, at Union Station in Washington, D.C. Photo Credit: (NASA/Joel Kowsky)
Students learn about the different regions of the Moon at one of NASA's exhibits at the Earth Day event on Monday, April 22, 2019, at Union Station in Washington, D.C. Photo Credit: (NASA/Joel Kowsky)
Visitors explore one of NASA's exhibits at the Earth Day event on Thursday, April 19, 2018 at Union Station in Washington, D.C. Photo Credit: (NASA/Aubrey Gemignani)
Students create a cloud in a bottle at one of NASA's exhibits at the Earth Day event on Monday, April 22, 2019, at Union Station in Washington, D.C. Photo Credit: (NASA/Joel Kowsky)
Students watch a short video on NASA's ICESat-2 at one of NASA's exhibits at the Earth Day event on Monday, April 22, 2019, at Union Station in Washington, D.C. Photo Credit: (NASA/Joel Kowsky)
A visitor explores one of NASA's exhibits at the Earth Day event on Thursday, April 19, 2018 at Union Station in Washington, D.C. Photo Credit: (NASA/Aubrey Gemignani)
Visitors explore one of NASA's exhibits at the Earth Day event on Thursday, April 19, 2018 at Union Station in Washington, D.C. Photo Credit: (NASA/Aubrey Gemignani)
Visitors explore one of NASA's exhibits at the Earth Day event on Thursday, April 19, 2018 at Union Station in Washington, D.C. Photo Credit: (NASA/Aubrey Gemignani)
Visitors learn about CubeSats at of NASA's exhibits at the Earth Day event on Monday, April 22, 2019, at Union Station in Washington, D.C. Photo Credit: (NASA/Joel Kowsky)
Signs that can be held up in a picture with a large globe are seen on a table at NASA's Earth Day event on Monday, April 22, 2019, at Union Station in Washington, D.C. Photo Credit: (NASA/Joel Kowsky)
Visitors explore one of NASA's exhibits at the Earth Day event on Thursday, April 19, 2018 at Union Station in Washington, D.C. Photo Credit: (NASA/Aubrey Gemignani)
Visitors view satellite images of Earth at one of NASA's exhibits at the Earth Day event on Monday, April 22, 2019, at Union Station in Washington, D.C. Photo Credit: (NASA/Joel Kowsky)
A visitor explores one of NASA's exhibits at the Earth Day event on Thursday, April 19, 2018 at Union Station in Washington, D.C. Photo Credit: (NASA/Aubrey Gemignani)
Visitors explore one of NASA's exhibits at the Earth Day event on Thursday, April 19, 2018 at Union Station in Washington, D.C. Photo Credit: (NASA/Aubrey Gemignani)
Beads treated to react to ultraviolet light are used to show how the Sun's invisible rays can effect us at one of NASA's exhibits at the Earth Day event on Monday, April 22, 2019, at Union Station in Washington, D.C. Photo Credit: (NASA/Joel Kowsky)
Holli Riebeek, Education and Public Outreach Lead for NASA/Landsat Mission at NASA's Goddard Spaceflight Center, holds up Landsat maps NASA's Earth Day Science Gallery Exhibit, Monday, April 22, 2013 at Union Station in Washington. The NASA Science Gallery exhibits are being sponsored by NASA in honor of Earth Day. (Photo Credit: NASA/Carla Cioffi)
Holli Riebeek, Education and Public Outreach Lead for NASA/Landsat Mission at NASA's Goddard Spaceflight Center, is seen speaking to students at NASA's Earth Day Science Gallery Exhibit, Monday, April 22, 2013 at Union Station in Washington. The NASA Science Gallery exhibits are being sponsored by NASA in honor of Earth Day. (Photo Credit: NASA/Carla Cioffi)
Jennifer Brennan, NASA EOSDIS Outreach Lead at NASA's Goddard Spaceflight Center, speaks to participants at a NASA Earth Day sponsored exhibit about satellite earth imagery, Monday, April 22, 2013 at Union Station in Washington. The NASA Science Gallery exhibits are being sponsored by NASA in honor of Earth Day. (Photo Credit: NASA/Carla Cioffi)
Visitors pose for a photo with former NASA astronaut Paul Richards at the Earth Day event on Thursday, April 19, 2018 at Union Station in Washington, D.C. Photo Credit: (NASA/Aubrey Gemignani)
Visitors look through virtual reality goggles at one of NASA's exhibits at the Earth Day event on Thursday, April 19, 2018 at Union Station in Washington, D.C. Photo Credit: (NASA/Aubrey Gemignani)
A visitor looks through virtual reality viewers at one of NASA's exhibits at the Earth Day event on Thursday, April 19, 2018 at Union Station in Washington, D.C. Photo Credit: (NASA/Aubrey Gemignani)
A visitor gives a high five after learning about oceans at one of NASA's exhibits at the Earth Day event on Thursday, April 19, 2018 at Union Station in Washington, D.C. Photo Credit: (NASA/Aubrey Gemignani)
A visitor learns about Earth at one of NASA's exhibits at the Earth Day event on Thursday, April 19, 2018 at Union Station in Washington, D.C. Photo Credit: (NASA/Aubrey Gemignani)
NASA Administrator Bill Nelson, right, visits NASA’s exhibits during Earth Day, Friday, April 22, 2022, at Union Station in Washington. Photo Credit: (NASA/Bill Ingalls)
2017 NASA Earth Day at Union Station, Washington DC
2017 NASA Earth Day at Union Station, Washington DC
Dr. Michael Freilich, director, Earth Science Division, NASA Headquarters, speaks about the benefits of studying the Earth at NASA's Earth Day event on Thursday, April 19, 2018 at Union Station in Washington, D.C. Photo Credit: (NASA/Aubrey Gemignani)
Former NASA astronaut, Paul Richards, speaks about his experience viewing Earth from space at NASA's Earth Day event on Thursday, April 19, 2018 at Union Station in Washington, D.C. Photo Credit: (NASA/Aubrey Gemignani)
Dr. Michael Freilich, director, Earth Science Division, NASA Headquarters, speaks about the benefits of studying the Earth at NASA's Earth Day event on Thursday, April 19, 2018 at Union Station in Washington, D.C. Photo Credit: (NASA/Aubrey Gemignani)
NASA Administrator Bill Nelson, left, talks with DC area school children about Earth Day during his visit of NASA hands-on exhibits inside Union Station in Washington, Friday, April 22, 2022. Photo Credit: (NASA/Bill Ingalls)
Dr. Allison Leidner, scientist, Earth Science Division, NASA Headquarters, speaks about Earth’s biodiversity at NASA's Earth Day event on Thursday, April 19, 2018 at Union Station in Washington, D.C. Photo Credit: (NASA/Aubrey Gemignani)
Former NASA astronaut, Paul Richards, speaks about his experience viewing Earth from space at NASA's Earth Day event on Thursday, April 19, 2018 at Union Station in Washington, D.C. Photo Credit: (NASA/Aubrey Gemignani)
Former NASA Administrator Charlie Bolden speaks with local students during an Earth Day event, Thursday, April 20, 2023, at Union Station in Washington. Photo Credit: (NASA/Keegan Barber)
Former NASA Administrator Charlie Bolden speaks with local students during an Earth Day event, Thursday, April 20, 2023, at Union Station in Washington. Photo Credit: (NASA/Keegan Barber)
Former NASA Administrator Charlie Bolden speaks with local students during an Earth Day event, Thursday, April 20, 2023, at Union Station in Washington. Photo Credit: (NASA/Keegan Barber)
Visitors explore NASA’s hands-on exhibits during an Earth Day event, Thursday, April 20, 2023, at Union Station in Washington. Photo Credit: (NASA/Keegan Barber)
Former NASA Administrator Charlie Bolden speaks with local students during an Earth Day event, Thursday, April 20, 2023, at Union Station in Washington. Photo Credit: (NASA/Keegan Barber)
Former NASA Administrator Charlie Bolden speaks with local students during an Earth Day event, Thursday, April 20, 2023, at Union Station in Washington. Photo Credit: (NASA/Keegan Barber)
Visitors explore NASA’s hands-on exhibits during an Earth Day event, Thursday, April 20, 2023, at Union Station in Washington. Photo Credit: (NASA/Keegan Barber)
Former NASA Administrator Charlie Bolden speaks with local students during an Earth Day event, Thursday, April 20, 2023, at Union Station in Washington. Photo Credit: (NASA/Keegan Barber)
Earth Science Division Deputy Director Julie Robinson speaks with local students during an Earth Day event, Thursday, April 20, 2023, at Union Station in Washington. Photo Credit: (NASA/Keegan Barber)
Earth Science Division Deputy Director Julie Robinson speaks with local students during an Earth Day event, Thursday, April 20, 2023, at Union Station in Washington. Photo Credit: (NASA/Keegan Barber)
Visitors explore NASA’s hands-on exhibits during an Earth Day event, Thursday, April 20, 2023, at Union Station in Washington. Photo Credit: (NASA/Keegan Barber)
Visitors explore NASA’s hands-on exhibits during an Earth Day event, Thursday, April 20, 2023, at Union Station in Washington. Photo Credit: (NASA/Keegan Barber)
Visitors explore NASA’s hands-on exhibits during an Earth Day event, Thursday, April 20, 2023, at Union Station in Washington. Photo Credit: (NASA/Keegan Barber)
Visitors explore NASA’s hands-on exhibits during an Earth Day event, Thursday, April 20, 2023, at Union Station in Washington. Photo Credit: (NASA/Keegan Barber)
Visitors explore NASA’s hands-on exhibits during an Earth Day event, Thursday, April 20, 2023, at Union Station in Washington. Photo Credit: (NASA/Keegan Barber)
Visitors explore NASA’s hands-on exhibits during an Earth Day event, Thursday, April 20, 2023, at Union Station in Washington. Photo Credit: (NASA/Keegan Barber)
Visitors explore NASA’s hands-on exhibits during an Earth Day event, Thursday, April 20, 2023, at Union Station in Washington. Photo Credit: (NASA/Keegan Barber)
Former NASA Administrator Charlie Bolden speaks with local students during an Earth Day event, Thursday, April 20, 2023, at Union Station in Washington. Photo Credit: (NASA/Keegan Barber)
Earth Science Division Deputy Director Julie Robinson speaks with local students during an Earth Day event, Thursday, April 20, 2023, at Union Station in Washington. Photo Credit: (NASA/Keegan Barber)
Visitors explore NASA’s hands-on exhibits during an Earth Day event, Thursday, April 20, 2023, at Union Station in Washington. Photo Credit: (NASA/Keegan Barber)
Visitors explore NASA’s hands-on exhibits during an Earth Day event, Thursday, April 20, 2023, at Union Station in Washington. Photo Credit: (NASA/Keegan Barber)
Former NASA Administrator Charlie Bolden speaks with local students during an Earth Day event, Thursday, April 20, 2023, at Union Station in Washington. Photo Credit: (NASA/Keegan Barber)
Visitors explore NASA’s hands-on exhibits during an Earth Day event, Thursday, April 20, 2023, at Union Station in Washington. Photo Credit: (NASA/Keegan Barber)
Former NASA Administrator Charlie Bolden speaks with local students during an Earth Day event, Thursday, April 20, 2023, at Union Station in Washington. Photo Credit: (NASA/Keegan Barber)
Visitors explore NASA’s hands-on exhibits during an Earth Day event, Thursday, April 20, 2023, at Union Station in Washington. Photo Credit: (NASA/Keegan Barber)
Visitors explore NASA’s hands-on exhibits during an Earth Day event, Thursday, April 20, 2023, at Union Station in Washington. Photo Credit: (NASA/Keegan Barber)