DC—The 25-meter-long remains of the Ross Ice Shelf, the floating Antarctic ice sheet that was once the size of France, will be displayed in the Smithsonian Institution's basement freezer through August. "We thank the generous citizens of Philadelphia, who donated this polar-cap remnant when it washed up on their shores earlier this year," curator Tim Riley said. "The ice sheet is a valuable artifact of the earth's geological past." Guests at an upcoming fundraising dinner will be served cocktails made with chunks of the shelf.