Frozen material at the planet’s poles likely came from comet or asteroid impacts. The sun-scorched surface of Mercury may be the last place you’d expect to find ice. But NASA’s MESSENGER spacecraft has found the strongest evidence yet of frozen water —and carbon-rich material — on the planet closest to the sun. While Mercury itself …
Tag Archive: NASA
May 02
Phoebe, the black sheep.
Phoebe, the moon full of craters wich is Saturn’s largest, can be a real ”black sheep”. A few years ago, scientists discovered that this natural satellite did not originate at the time of planet’s formation, but was trapped by its gravity and probably came from the Kuiper Belt, a swarm of icy rocks beyond Neptune. Now, researchers studying the data obtained by NASA’s Cassini probe confirms these suspicions. Phoebe may have more in common with other planets than any of his many sisters that orbit the gas giant. The …