HomeMysterious Signature in Greenland's Ice Might Not Be From Space After All – ScienceAlert Mysterious Signature in Greenland's Ice Might Not Be From Space After All – ScienceAlertAustralia Mysterious Signature in Greenland’s Ice Might Not Be From Space After All ScienceAlert A volcano or a meteorite? New evidence sheds light on puzzling discovery in Greenland’s ice sheet The Conversation