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Earth

Complex plants were first to conquer land: study

Before the first land plants appeared on Earth around half a billion years ago, Earth would have looked recognizable with no grass, trees or even mosses. Up until now, mosses and their relatives the hornworts and liverworts have been…

Thirsty rocks may contain the missing water of Mars

What happened to all the water that once sloshed in lakes and oceans on Mars? Much of it, researchers proposed may be locked up in stone. Previous studies had concluded that the water was swept into space by powerful solar winds when…

New island offers clues in search for life on Mars: NASA

WELLINGTON: The world's newest island, formed during a volcanic eruption in the remote Pacific three years ago, may offer clues to how life potentially developed on Mars, NASA said Wednesday. The island of Hunga Tonga Hunga Ha´apai rose…