20
POPSIs a 'Dark Force' Pushing the Universe Apart? Astronomers now recognize that the eventual fate of the universe is inextricably tied to the presence of dark energy and dark matter.The current standard model for cosmology describes a universe that is 70 percent dark energy, 25 percent dark matter, and only 5 percent normal matter.
11
POPSBertrand Russell quotes
# This idea of weapons of mass extermination is utterly horrible and is something which no one with one spark of humanity can tolerate. I will not pretend to obey a government which is organising a mass massacre of mankind. # “Not enough evidence, God, not enough evidence.” (Russell’s reply when asked what he would say if he died and found himself confronted by God, demanding to know why Russell had not believed in him) # Many orthodox people speak as though it were the business of skeptics to disprove received dogmas rather than of dogmatists to prove them. This is, of course, a mistake. If I were to suggest that between the Earth and Mars there is a china teapot revolving about the sun in an elliptical orbit, nobody would be able to disprove my assertion provided I were careful to add that the teapot is too small to be revealed even by our most powerful telescopes. But if I were to go on to say that, since my assertion cannot be disproved, it is intolerable presumption on the p
1
POPSPlan to build telescopes from Moon dust I can't imagine them doing it any other way. After what we've seen with Hubble, The view from the dark side during a full moon, the improvement is likely to be the same magnitude. seems like the deeper we look into the stars, the bigger the Universe seems to get. Maybe we could get clearer readings that would show us where a few more 'earth-like' planets are.
2
POPSHungry, hungry black holes The conclusion comes from a large observing campaign of the spiral galaxy M81, which is about 12 million light-years from Earth. In the center of M81 is a black hole that is about 70 million times more massive than the Sun, and generates energy and radiation as it pulls gas in the central region of the galaxy inwards at high speed.
16
POPSThe web that time forgot "Today, Otlet and his work have been largely forgotten, even in his native Belgium. Although Otlet enjoyed considerable fame during his lifetime, his legacy fell victim to a series of historical misfortunes — not least of which involved the Nazis marching into Belgium and destroying much of his life's work. But in recent years, a small group of researchers has begun to resurrect Otlet's reputation, republishing some of his writing and raising money to establish the museum and archive in Mons."
9
POPSGlobal Network Of Telescopes Simulates 6,000-mile Wide Telescope "These results are very significant for the advance of radio astronomy," said JIVE director Huib Jan van Langevelde. "It shows not only that telescopes of the future can be developed in worldwide collaboration, but that they can also be operated as truly global instruments." EXPReS, funded by the European Commission, aims to connect up to 16 of the world's most sensitive radio telescopes to the JIVE processor to correlate VLBI data in real time. This replaces the traditional VLBI method of shipping data on disk and provides astronomers with observational data in a matter of hours rather than weeks, allowing them to respond rapidly to transient events with follow-up observations.
0
POPSThe Workings Of Telescopes The workings of telescopes and the different types such as refracting and reflecting telescopes as well as its different components like mount and eyepieces.
3
POPSYoungest Exploded Star In The Milky Way Is Discovered
It turns out, Green and his team came across the remnants, now called G1.9+0.3, more than 20 years ago using the Very Large Array (VLA) radio telescope in Socorro, NM, and estimated the object’s age to be 400-1,000 years old. It is near the center of the Milky Way, some 25,000 light-years from Earth. By comparing notes, the astronomers learned the images taken more than two decades apart documented the expansion of debris from the star's explosion. The images taken in 2007 were about 16 percent larger than the ones taken in 1985. "This is a huge difference," said Reynolds. "It means the explosion debris is expanding very quickly, which in turn means the object is much younger than we originally thought." Reynolds also observed the object with the VLA radio telescope to confirm the supernova remnant's rapid expansion. Unlike visible-light telescopes, radio and X-ray telescopes can penetrate the thick clouds of gas and dust in our galaxy.
7
Pops
Newest Clips
Latest Comments
Most Pops
Print
Save
Turn on live update