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An internal ocean on Ganymede: Hooray for consistency with previous results!

Emily Lakdawalla • March 12, 2015 • 8

A newly published paper confirms a subsurface ocean at Ganymede. An ocean there was already suspected from its magnetic field and predicted by geophysics; new Hubble data confirms it, and even says it is in the same place we thought it was before. Such consistency is rare enough in planetary science to be worth celebration.

Mapping Europa

Björn Jónsson • February 18, 2015 • 2

Several global maps have been made of Europa, but amateur image processor Björn Jónsson felt they could be improved—so he decided to make a new one.

It's Official: We're On the Way to Europa

Casey Dreier • February 02, 2015 • 8

NASA's 2016 budget request increases the space agency's budget by $519 million, starts a new mission to Europa, increases funds to Commercial Crew, and threatens some long-running planetary missions.

Flawed Beauties

Bill Dunford • February 02, 2015 • 1

More examples of imperfect--but tantalizing--images from deep space.

JUICE at Europa

Van Kane • January 13, 2015 • 7

Europe's JUICE spacecraft will provide us with a detailed regional study of this icy moon of Jupiter.

Join me in Washington, D.C. for a post-Thanksgiving Celebration of Planetary Exploration

Casey Dreier • November 26, 2014

See Bill Nye, Europa scientist Kevin Hand, and Mars scientist Michael Meyer speak at a special event on Capitol Hill on December 2nd.

Don't Miss This Great New Video About Europa

Casey Dreier • November 21, 2014

JPL released a slick new video highlighting the significance of Europa, the moon of Jupiter with more liquid water than the Earth.

A Mission to Europa Just Got a Whole Lot More Likely

Casey Dreier • November 20, 2014

Rep. John Culberson, an outspoken supporter of Europa exploration, will assume leadership of an influential congressional committee that funds NASA.

Europa: How Less Can Be More

Van Kane • August 26, 2014 • 6

Van Kane explains three factors that make exploring Europa hard—factors that can make a mission concept that seems like less actually be more.

Three Major Volcanic Eruptions Observed On Io in the Span of Two Weeks

Jason Perry • August 12, 2014 • 1

Jason Perry brings us a report on recent ground-based observations that shed new light on the most powerful of Io’s volcanic eruptions.

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