#Astronomy

Using data from Nasa's Cassini space craft , scientists have discovered that Saturn's moon Titan is drifting a hundred times faster than than previously understood  -- about 11 centimetres per year. The findings, published in journal Nature Astronomy, may help address an age old Question. While scientist know that Saturn formed 4.6 billion years ago in the early days of solar system , there no more uncertainty about when the planet's rings and its system of more than 80 moons formed.  Titan is currently 1.2 million kilometres from Saturn. The revised rate of its drift suggests that the moon started out much closer to Saturn, which would mean the whole system expanded more quickly than previously believed. This result brings an important new piece of puzzle for highly debated question of age of Saturn system and how its moon formed.       

What is reason behind earths magnetic field is constantly diverting around  geographic North pole? As everyone knows that the core of earth ( a solid ball composition of iron and nickel ) floats over Secondary core ( which is after mantle )  exists in liquid state, and that is enough to make dance magnetic field. Let us understand, Sun is our host star and has giant and strong magnetic fields , now here is the point to understand that sun has not uniform magnetic field like earth has, as sun is whole nuclear giant with high frequency rotation around its own axis it generates about 0.15 Tesla strength of magnetic field which is very strong as compared to Earth's (0.00003 Tesla). And sometime  fluctuation in magnetic field of sun due to solar flayers ejection ( which forms Black Spots on Sun ) generates about 0.3 Tesla intensity of magnetic fields which triggers weak earth's magnetic field. Now let's come to our original issue, due to strong impact of

The research published in the Monthly Notices of the Royal Astronomical Society, confirms the current understanding of Cosmological evolution-- that galaxies and their associated black hole merge over time, forming bigger and bigger galaxies and black holes. SCIENTISTS have fount evidence for a large number of double supermassive black holes,likely precursors of gigantic black hole merging events. The research published in the Journal monthly notices of Royal astronomical society,confirm the current understanding of cosmological evolution-- that Galaxy and their associated black hole merger over time, forming bigger and bigger galaxy and black holes.Astronomers from the university of Hertfordshire in the UK and colleagues look at radio map of powerful Jet sources and found signs that would usually be present when looking at black holes that are closely orbiting each other. Before black hole merge they form a binary black hole , where the two black hole orbit around each other.

Sure, you’re trapped in your house, but there’s an entire galaxy of cool stuff right over your head in the night sky. Space is infinitely expanding (and contracting, but we’ll focus on the expanding), which might relieve the claustrophobia and boredom that come along with quarantine.  Here are eight pictures showing the mystery and wonder of the universe.  STAR CLUSTER Just how it sounds, a star cluster is a bound group of stars. Young clusters contain fewer stars with more distance between them. As a cluster gets older, the stars move closer together, united by gravity. You can see some star clusters in the night sky with the naked eye. One is the constellation Seven Sisters, another’s inside the constellation Cancer. The closest star cluster, Hyades, is just 153 light-years from earth and you can see it inside the constellation Taurus.  NEBULA  The word nebula is Latin for cloud, which is also a perfect description. Images of nebulae from space are beautiful and other-w

                                                                                                                ( Image credit to NASA artist's impression)    NASA's latest planet hunting probe has discovered a new world outside our solar system, orbiting a dwarf star 53 light years away. This is the third new planet confirmed by the Transiting Exoplanet Survey satellite (TESS) since its launch in April last year. The planet, named HD21749b , orbits a bright , nearby dwarf star about 53 light years away,in the constellation Reticulum , and appears to have longest orbital period of the three planets so far identified by TESS. HD21749b journeys around its star in a relatively leisurely 36 days, compared to two other planets -Pi Mensae b, a "super earth" with a 6.3 day orbit, and LHS 3844b , a rocky world that speeds around its star in just 11 hours. All three planets were discovered in the first three months of TESS observations. The surface of the new planet

Exoplanets which are between two to four times the size of earth  are likely to have vast amounts of water, according to a study that may have implications for the search of Alien life in our Galaxy.   Data from the exoplanet hunting Kepler space Telescope and Gaia mission indicates that many of the known planets may contain as much as 50 % of water. This is much more than the earth's 0.02% water content, researchers said. "It was huge surprise to realize that there must be so many water worlds," said Li Zeng  from Harvard University in US. Scientists have found that many of the 4000 confirmed or candidate exoplanets discovered so far fall into size categories: those with the planetary radius averaging around 1.5 that of earth, and those averaging around 2.5 times the radius of the earth. After analyzing the exoplanet with mass measurements and recent radius measurements from the Gaia satellite, scientists have developed a model of their internal structure. &quo