It Does Something A Lot Weirder And now you all understand why Stephen Hawking is widely acknowledged as a genius. Until his proposal of black hole evaporation by virtual particles, no one had then made such a strong link between quantum mechanics and general relativity. Much however still remains to be done. Where Does Gravity Come From? Professor Stephen Hawking during a zero-gravity flight. Image credit: Zero G. Gravity. The average person probably doesn’t think about it on a daily basis, but yet gravity affects our every move. Because of gravity, we fall down (not up), objects crash to the floor, and we don’t go flying off into space when we jump in the air. The Planets of our Solar System for Grade 1 Solar System is made up of one star, a handful of planets, more than hundred moons, millions of rocky asteroids and billions of comets. All these bodies revolve around the sun because of the gravity of the sun. Gravity of the sun is a force that pulls the objects towards the centre of the sun.
Hubble zooms in on a space oddity A strange, glowing green cloud of gas that has mystified astronomers since its discovery in 2007 has been studied by Hubble. The cloud of gas is lit up by the bright light of a nearby quasar, and shows signs of ongoing star formation. One of the strangest space objects ever seen is being scrutinised by the penetrating vision of the NASA/ESA Hubble Space Telescope. A mysterious, glowing green blob of gas is floating in space near a spiral galaxy. Hubble uncovered delicate filaments of gas and a pocket of young star clusters in the giant object, which is the size of the Milky Way.
There Is No Time. There Never Was and There Never Will Be By: Josh Richardson, Prevent Disease Everything exists in the present moment and it’s a fundamental principle of the Universe that many of our scientists are still trying to grasp. Time does not actually exist and Quantum Theory proves it. There are things that are closer to you in time, and things that are further away, just as there are things that are near or far away in space. Saturn's north polar vortex: New Cassini images. Saturn is a gas giant planet, nine times wider than Earth, and mostly atmosphere. We don’t see its surface as such, but the top of its clouds. That means we peer down on a wildly dynamic environment, in some ways like Earth and in others, well, alien. And sometimes both.
Hubble Telescope Reveals Deepest View of Universe Ever The Hubble Space Telescope has captured the farthest-ever view into the universe, a photo that reveals thousands of galaxies billions of light-years away. The picture, called eXtreme Deep Field, or XDF, combines 10 years of Hubble telescope views of one patch of sky. Only the accumulated light gathered over so many observation sessions can reveal such distant objects, some of which are one ten-billionth the brightness that the human eye can see. The photo is a sequel to the original "Hubble Ultra Deep Field," a picture the Hubble Space Telescope took in 2003 and 2004 that collected light over many hours to reveal thousands of distant galaxies in what was the deepest view of the universe so far.
Memories of Kurt Gödel [This memoir essay appeared in the magazine Science 82 in April 1982, and in my 1982 book Infinity and the Mind. It’s based on the “Conversations With Godel” documented in my previous post. Some of the photos are from a recent trip through the West, others from the 1970s.] [This is a cropped version of a photo by Arnold Newman.] I didn’t know where his real office door was, so I went around to knock on the outside door instead. This was a glass patio door, looking out on a little pond and the peaceful woods beyond the Institute for Advanced Study.