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This past August, CEPS scientists traveled to Iceland to study geologic features known as pit chains, which form in a similar way to pit chains on Saturn’s icy moon, Enceladus.

Using satellites and robotic rovers, we’ve learned quite a few details about the various planets orbiting our Sun. But what about other stars? What are their planets like? How weird do they get? It turns out, pretty weird.

If you’re going to Mars, which do you bring: water or a shovel? The question may sound a little tongue-in-cheek, but it actually goes right to the heart of a critical need for future human exploration of Mars – accessible water. Learn how the MARSIS instrument is helping answer this question. 

At the end of the NASA Cassini spacecraft's 13-year mission, National Air and Space Museum scientists and educators are reflecting on what this mission has meant to them.

I think it surprises a lot of people that a mission as successful as the Cassini-Huygens Mission would be terminated on purpose. Not just shutting the spacecraft off, but terminated with such style by sending it on a destructive dive into Saturn’s atmosphere. Cassini will burn up and be destroyed in a similar way that a meteorite is broken up in Earth’s atmosphere.

You’ve probably heard of the National Aeronautics and Space Administration (NASA), but have you heard of the Italian Space Agency or the European Space Agency? NASA works with these groups, among others, to explore the frontiers of space together. It wasn’t always this way; Russia and the United States both devoted countless resources to beating each other to space in the 1960s. But today, through shared missions and space stations, we work cooperatively to explore the final frontier.

When John Grant was only 16, the Viking landers were sent to Mars. Today, Grant  helps lead the operation groups controlling two Mars rovers,  Opportunity and Curiosity, as a geologist at the National Air and Space Museum’s Center for Earth and Planetary Studies. Recent data collected by Curiosity and published in Science describes an ancient lake environment located at Gale Crater—an environment Grant, a coauthor of the article, believes holds further clues to whether there was ever life on the Red Planet.

In late March, I traveled to Puerto Rico to conduct observations of Venus using the Arecibo Observatory telescope. It was the second time I traveled to the observatory to make radar measurements of the surface of Venus. Even though it was my second time there, the size and capability of the telescope still impressed me; the telescope is largest single-aperture telescope ever constructed.

Earth Day will be celebrated on April 22. An annual event begun in 1970, it is, in the words of anthropologist Margaret Mead, “devoted to the preservation of the harmony in nature.” Before and since that first occasion, spaceflight and the environmental movement have been deeply entwined, shaping how we think about Earth as home as well as our responsibilities to sustain that home.

Of the four known giant planets in our solar system, Jupiter is by far the largest. It is wider than 11 Earths side by side and has more mass than all the other seven planets combined. It is made up mostly of hydrogen and helium and has strong winds and storms.