Astrophysicist

         There are at least two different ways to describe how big something is. We can say how much mass it has, or we can say how much space it takes up. Let's talk first about the masses of Black Holes.          There is no limit in principle to how much or how little mass a Black Hole can have. Any amount of mass at all can in principle be made to form a Black Hole if you compress it to a high enough density. We suspect that most of the Black Holes that are actually out there were produced in the deaths of massive Stars, and so we expect those Black Holes to weigh about as much as a massive Star. A typical mass for such a Stellar Black hole would be about 10 times the mass of the Sun, or about 10^31 kilograms. Astronomers also suspect that many Galaxies harbor extremely massive Black Holes at their centers. These are thought to weigh about a million times as much as the Sun, or 10^36 kilograms.      ...

    The Hubble Space Telescope is a NASA space telescope that was carried into orbit by a space shuttle named Discovery (STS-31) on 24th April 1990. It was carried in the shuttle`s cargo bay! The space based observatory allows astronomers a better view of the Universe. The telescope is the size of a school bus.     Hubble is one of the largest and most versatile, and is well known as both a vital research tool and a public relations boon for astronomy. The HST was built by the United States Space Agency NASA, with contributions from the European Space Agency, and is operated by the Space Telescope Science Institute, Baltomore, MD.     NASA named the world`s first space based optical telescope after American astronomer Edwin P. Hubble (1889-1953). In 1929 A.D, Edwin Hubble confirmed an expanding universe, which provided the foundation for the Big Bang theory.     Hubble is the only telescope ever designed to be servicing missions were per...

1. It's craters have been untouched by sunlight for billions of years- offering an undisturbed record of the solar system's origin. 2. It's permanently shadowed craters are estimated to hold 100 million tons of water. 3. It's regolith has traces of hydrogen, ammonia, methane, sodium, mercury and silver-making it an untapped source of essential resources. 4. It's elemental and positional advantages make it a suitable pit stop for future space exploration. Source - https://mobile.twitter.com/isro/status/1162752450903678978 Also see - https://forastrophysicist.blogspot.com/2019/08/chandrayaan-2.html?m=1 To see Chadrayaan mission click here 👇👇👇👇👇👇👇👇 https://youtu.be/QSd2OLEcrUA #Ankistar

Suppose you lose your baseball in the woods, and you and your friend decide to look for it. You know that either you will find it, or your friend will (or it will remain lost). Assuming the ball hasn’t been damaged, it won’t be the case that you and your friend each find half of the ball, or that you both find the ball in different locations. There is only one ball, and it has an exact location, even if you don’t know where it is. It can only be found once, and only by one of you. A wave behaves differently, however. Suppose the ball is dropped into the center of a pond, and you and your friend stand on the shore to look for the wave. You can be on one side of the pond, your friend on the other side, and you can both see the wave wash upon the shore. You can even both see the wave wash ashore at the same time, because part of the wave is near you, while another part is near your friend. This is a fundamental difference between particles and waves. Particles are local, with a ...

"The revolution that was unfolding at the dawn of twentieth century concerned the nature of stars. According to the positivist philosophers who greatly influenced European thinking in the eighteenth and nineteenth century, it was in the nature of things that we shall never know what the stars are. The discovery of the dark lines in the spectrum of the Sun and the stars by Joseph V. Fraunhofer IN 1817 AND their subsequent explanation by Gustav Kirchoff, Bunsen and others, proved the philosophers wrong. It was clear that at least the outer layers of the Sun was gaseous and made of the same atom that we find on the Earth. The subject of Astrophysics born. By the 1930s one had understood a great deal about what are the Stars and why are they as they are. And the new journey begins."                                                          ...

Chandrayaan-2, India’s second mission to the moon, will comprise an orbiter, a lander named Vikram [after the father of Indian space programme Vikram Sarabhai], and a rover.   It was supposed to be launched on  15 July 2019 at 2:51 IST (14 July 2019 21:21 UTC) but was called off due to a technical snag noticed while filling the cryogenic engine of the rocket with helium   about one hour before launch.  So  the mission was postponed. The landing site for the Chandrayaan-2 rover is expected to be between the two craters Manzinus C and Simpelius N near the southern pole of the moon. The orbiter will go around the moon at an altitude of 100 km, acting as a communication relay between the lander/rover and Earth. The far side of the moon can never be in direct line-of-sight with Earth, proving direct radio communication impossible, which is why the orbiter is needed. It will carry five instruments: A radar that will probe a few metres below the su...

We all know and love the Higgs boson — which to physicists' chagrin has been mistakenly tagged in the media as the "God particle" — a subatomic particle first spotted in the Large Hadron Collider (LHC) back in 2012. That particle is a piece of a field that permeates all of space-time; it interacts with many particles, like electrons and quarks, providing those particles with mass, which is pretty cool. But the Higgs that we spotted was surprisingly lightweight. According to our best estimates, it should have been a lot heavier. This opens up an interesting question: Sure, we spotted a Higgs boson, but was that the only Higgs boson? Are there more floating around out there doing their own things? Though we don't have any evidence yet of a heavier Higgs, a team of researchers based at the LHC, the world's largest atom smasher, is digging into that question as we speak. And there's talk that as protons are smashed together inside the ring-shaped c...