Hubble Images High Resolution Slide Show hubble space telescope wallpapers wallpapertag Images Resolution Show Hubble High Slide

Hubble Images High Resolution Slide Show hubble space telescope wallpapers wallpapertag Images Resolution Show Hubble High Slide

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A little interesting about space life.

"Pluto will continue to surprise us when New Horizons flies past it in July (2015). Our work with Hubble just gives us a foretaste of what's in store," Dr. Showalter commented to the press on June 3, 2015.

and here is another

Kepler-22b sports an orbital period of approximately 200 days. Its inclination is about 90 degrees, and it transits in front of the face of its star as observed by Earth-based astronomers. The shape of Kepler-22b's orbit is unknown, but it is known that its average orbital distance is well within its parent star's habitable zone. Many extrasolar planets are known to sport highly elliptical (football-shaped) orbits, and if Kepler-22b also travels along such a path around its star, it would only spend a tiny fraction of its time within this Goldilocks zone. This would cause the planet to undergo such extreme variations in temperature that it would not be a pleasant place for delicate living things to evolve and flourish. Kepler-22b is approximately 2.4 times the radius of Earth.

and finally

"This is still very much an area of active research, so there is much that scientists including our Department of Terrestrial Magnetism staff scientist Erik Hauri, as well as many other Carnegie colleagues and alumni, are figuring out about how much water exists on the Moon. This is a highly important and challenging question to answer given that we have limited knowledge on the history and distribution of lunar water," explained Dr. Miki Nakajima in a February 26, 2018 Carnegie Institution Press Release. Dr. Nakajima, who is of the Carnegie Institution of Washington (D.C.), along with California Institute of Technology's (Caltech's) Dr. David Stevenson, set out to determine whether prevailing lunar formation models need to be adjusted to explain more recent higher estimates of the quantity of water on Earth's Moon. Caltech is in Pasadena.

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Earth's Moon is the fifth largest moon in our entire Solar System, as well as the only world beyond our planet that we have visited. Our lunar companion is the largest and brightest object in the sky at night, and many astronomers think that it was born when the tragedy that was the pulverized Theia blasted into ancient Earth billions of years ago. There are other theories, however, that seek to explain how our Moon came to be. Nevertheless, the Giant Impact theory stands its ground as the most credible explanation for lunar birth. When the doomed, destroyed Theia impacted Earth, it shot debris above our planet. This abundant debris eventually coalesced to form our Moon.

A moon is an enchanting thing! There are more than 100 lovely moons circling the eight major planets in our Solar System, alone--including our own beloved Moon--the brightest and largest gleaming object suspended in the brilliantly starry night sky above the Earth. But how did the moons of our Solar System come into being?

Such moon-forming mergers and collisions are not unheard of. For example, the leading theory explaining the formation of Earth's own large Moon, suggests that it was born about 4.5 billion years ago when a Mars-sized protoplanet, dubbed Theia by astronomers, collided with our planet. Just as our Moon is identical geologically to Earth's mantle, the six medium-sized icy sister moons of Saturn are all similar in composition to Titan's icy mantle, the researchers announced in October 2012.