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Planetary Bombardment
As the Moon descends the western sky this evening, look about halfway along its crescent for a couple of dark round dots. Those are impact basins that formed when giant comets or asteroids slammed into the lunar surface. Molten rock bubbled up to fill the impact basins, creating volcanic plains. These and similar features probably formed about four billion years ago, when the inner solar system was bombarded by comets and asteroids. The...  
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Nemesis Star A Myth: Researchers Refute Claim Earth Is Periodically Hit By Asteroids Or Comets

By altonparrish3 on | From nanopatentsandinnovations.blogspot.com
Max Planck researchers refute the claim that Earth is periodically hit by asteroids or comets. Nemesis is a hypothetical hard-to-detect red dwarf star, white dwarf star or brown dwarf, orbiting the Sun at a distance of about 50,000 to 100,000 AU (about 0.8-1.5 light-years), somewhat beyond the Oort cloud. Nemesis is theorized to disturb the Oort cloud and periodically cast dangerous comets towards the inner solar system and Earth. Danger looms from out of space: asteroids and comets are a...Read Full Story

Can WISE Find the Hypothetical Planet 'Tyche'? It Found Sedna, Data Release To Tell the Tale

By altonparrish3 on | From nanopatentsandinnovations.blogspot.com
In November 2010, the scientific journal Icarus published a paper by astrophysicists John Matese and Daniel Whitmire, who proposed the existence of a binary companion to our sun, larger than Jupiter, in the long-hypothesized "Oort cloud" -- a faraway repository of small icy bodies at the edge of our solar system. The researchers use the name "Tyche" for the hypothetical planet. Their paper argues that evidence for the planet would have been recorded by the Wide-field Infrared Survey Explorer...Read Full Story

Did Many Famous Comets Form Around Other Stars?

By astronomyquest on | From astronomyquest.blogspot.com
In the above photograph taken on April 6, 1997, Comet Hale-Bopp was imaged from the Indian Cove Campground in the Joshua Tree National Forest in California, USA. A flashlight was used to momentarily illuminate foreground rocks during this six minute exposure. (Credit: NASA) Many of the most well known comets, including Halley, Hale-Bopp and, most recently, McNaught, may have been born in orbit around other stars, according to a new theory by an international team of astronomers led by a...Read Full Story

Planet Nibiru discovered?

By morphman on | From whiteowlconspiracy.com
(DailyMail) Scientists believe they may have found a new planet in the far reaches of the solar system, up to four times the mass of Jupiter. Its orbit would be thousands of times further from the Sun than the Earth's - which could explain why it has so far remained undiscovered. Data which could prove the existence of Tyche, a gas giant in the outer Oort Cloud, is set to be released later this year - although some believe proof has already been garnered by Nasa with its pace telescope...Read Full Story

Buzz over new planet Tyche claims

By artcanyon on | From starsontop.com
Claims about a possible ninth planet in our solar system are being met with curiosity and skepticism. Forget the “Sputnik moment.” If two astrophysicists are correct, we may be having a “Tyche moment” — a ninth planet to add to our solar system. But that’s a big “if.” The two scientists who make the claim, Daniel Whitmire and John Matese from the University of Louisiana at Lafayette, say a planet they named Tyche — that is four times the size of Jupiter — may be lurking in the outer solar...Read Full Story
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