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A new study reveals that Earth’s Moon may have undergone a radical change in its ancient history. Scientists have long suspected that Moon once had concentrations of ice in the craters surrounding its north and south pole which had been boiled off at some point of its history, indicating Moon must have shifted on its axis by nearly 6 degrees over the course of 1 billion years.
This type of thing is known as true polar wander and it happens very rarely when a planetary body spun on a different axis. Change in Moon’s axis may have occurred due to the movement of a large plume and this volcanic activity some 3.5 billion years ago melted a portion of Moon’s mantle.
NASA’s Kepler Space Telescope has captured the brilliant flash of an exploding star or what astronomers call “shock breakout” of a supernova for the first time.
Supernova is a massive explosion occurring in the ending stages of a giant star’s life. Kepler’s powerful technology and precision allowed astronomers to see the supernova as it erupts and shockwave reaches the surface of the star. The shock breakout itself lasts just 20 minutes so catching this event is a major milestone for astronomers.
New research suggests that some of the icy moon of Saturn and its famous rings may not be too old. Computer modeling of Saturation system indicates that the dramatic birth of moons and rings may have taken place mere 100 million years ago when dinosaurs were roaming the Earth.
Saturn has 62 known moons but scientists were never sure about their ages. All these moons are not only influenced by the gravity of planet but also by each other’s gravity. Using computer simulations and comparing their orbital tilts, researchers found that three of Saturn’ moons – Tethys, Dione and Rhea – had not interacted with other moons over a long period of time, indicating that these moon appeared to be relatively young.
NASA’s Cassini spacecraft has identified the tallest peak on Saturn’s largest moon Titan, which is nearly 11,000 feet high and is found within a trio of mountain called Mithrim Montes. Researchers used images and other data from Cassini’s radar instrument to look beyond the smog which has been obscuring Titan’s atmosphere and revealed the details of the surface.
It appear that skull of William Shakespeare is missing from his grave at Holy Trinity church in Stratford-on-Avon. Researchers reached to the conclusion after performing the first ground penetrating radar scans of playwright’s tomb for an upcoming documentary.
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The discovery lends credence to the legend that grave robbers stole the skull in 1794, reflecting that the material placed over grave being dug out and put back again.