Cassini Venus Around cassini to begin final five orbits around saturn nasa Venus Cassini Around .
Cassini Venus Around cassini spacecraft tracks venus transit from saturn Around Cassini Venus .
Cassini Venus Around nasa revealed beautiful images of venus captured by Venus Around Cassini .
Cassini Venus Around bbc news sciencenature cassini pass reveals moon secrets Cassini Around Venus .
Cassini Venus Around space images cassini spies bright venus from saturn orbit Around Cassini Venus .
Cassini Venus Around venus as seen from saturn through its rings space Around Cassini Venus .
Cassini Venus Around nasa39s cassini spacecraft sees venus from orbit around Venus Cassini Around .
Cassini Venus Around nasa39s cassini catches a glimpse of venus from saturn orbit Cassini Venus Around .
Cassini Venus Around nasa39s cassini captures earth venus and mars from saturn Venus Around Cassini .
Cassini Venus Around jpl news cassini spies bright venus from saturn orbit Venus Around Cassini .
Cassini Venus Around cassini spies venus from saturn orbit space science Around Venus Cassini .
Cassini Venus Around news cassini spies bright venus from saturn orbit Cassini Venus Around .
Cassini Venus Around venus as seen from saturn by cassini spaceref Cassini Venus Around .
Cassini Venus Around news cassini spies bright venus from saturn orbit Around Cassini Venus .
Cassini Venus Around space images cassini spies bright venus from saturn orbit Venus Around Cassini .
Cassini Venus Around stunning cassini mosaic shows earth mars and venus Cassini Around Venus .
Cassini Venus Around astronomy and space news astro watch cassini spies Cassini Venus Around .
Cassini Venus Around venus as seen from saturn through its rings space Venus Around Cassini .
Cassini Venus Around nasa cassini spies bright venus from saturn orbit Around Venus Cassini .
Cassini Venus Around cassini to begin death defying moves near saturn39s rings Venus Around Cassini .
Cassini Venus Around stunning views of venus all the way from saturn Venus Cassini Around .
Cassini Venus Around the mission cassini huygens space science our Cassini Around Venus .
Cassini Venus Around cassini spies bright venus from saturn orbit Around Cassini Venus .
Earth's Moon Reveals An Ancient Secret. Many astronomers think that during an ancient era, termed the Late Heavy Bombardment, our young Moon was violently battered by a marauding multitude of invading asteroids that crashed onto its newly formed surface. This attack of pelting objects from space occurred about 4 billion years ago, and the shower of crashing asteroids excavated impact craters, and also slashed open deep fissures, in the lunar crust. This sustained shower of merciless impacts increased lunar porosity, and opened up an intertwining network of large seams under the Moon's surface. Had Jupiter continued to gain weight, it would have grown ever hotter and hotter, and ultimately self-sustaining, raging nuclear-fusing fires may have been ignited in its heart. This would have sent Jupiter down that long, shining stellar road to full-fledged stardom. Had this occurred, Jupiter and our Sun would have been binary stellar sisters, and we probably would not be here now to tell the story. Our planet, and its seven lovely sisters, as well as all of the moons and smaller objects dancing around our Star, would not have been able to form. However, Jupiter failed to reach stardom. After its brilliant, sparkling birth, it began to shrink. Today, Jupiter emits a mere.00001 as much radiation as our Sun, and its luminosity is only.0000001 that of our Star. Jupiter is circled by a bewitching duo of moons that are potentially capable of nurturing delicate tidbits of life as we know it. Like its more famous sister-moon, Europa, Ganymede might harbor a life-loving subsurface ocean of liquid water in contact with a rocky seafloor. This special arrangement would make possible a bubbling cauldron of fascinating chemical reactions--and these reactions could potentially include the same kind that allowed life to evolve on our own planet!