БЛОГ

Archive for the ‘astronomy’ category: Page 4

Sep 24, 2015

A colorful and dazzling view of Pluto

Posted by in categories: astronomy, science, space

[From Engadget]…

While NASA has already shown us Pluto’s best images yet, the administration is anything but done blowing our minds. What you see above is an enhanced high-resolution color view of Pluto, created with a combination of blue, red and infrared images. NASA says this photo, taken by New Horizons spacecraft, highlights Pluto’s diverse landforms and shows us its complex geological and climatological story — as much as scientists have been able to figure out, anyway. Over the past few months, NASA’s shared many things related to Pluto, including a closer look at its desolate surface and icy mountain range.

Sep 10, 2015

Scale of the Universe revisits “Powers of Ten”

Posted by in categories: astronomy, cosmology, physics, space travel

As a follow-up to Shailesh Prasad’s thought provoking video (just below this article), I offer two equally impressive visualizations of the scope and magnificence of our universe. These videos are the epitome of a teachable moment. And it’s fun, too!

Check out this simple, one-button interactive Scale of the Universe by Cary Huang. Simply pull a slider left or right to zoom in or out. It covers the Universe from 1027 meters down to 10-35 meters (from the entire universe to the Plank length and quantum foam).

Charles and Ray Eames

Charles and Ray Eames

Unlike the classic film by Charles & Ray Eames (more about that later), the zoom doesn’t really take viewers closer or further away. Rather, it compares relative size by allowing users navigate by magnitudes (a circle indicates each power-of-ten).

Continue reading “Scale of the Universe revisits ‘Powers of Ten’” »

Aug 25, 2015

Dune, 50 years on: how a science fiction novel changed the world — By Hari Kunzru | The Guardian

Posted by in categories: astronomy, media & arts, philosophy, science, space travel, sustainability, water

3045


“It has sold millions of copies, is perhaps the greatest novel in the science-fiction canon and Star Wars wouldn’t have existed without it. Frank Herbert’s Dune should endure as a politically relevant fantasy from the Age of Aquarius.”

Read more

Aug 11, 2015

Slow death of Universe confirmed with precision

Posted by in categories: astronomy, cosmology, gravity, physics, space
  • The universe radiates only half as much energy as 2 billion years ago
  • New findings establish cosmos’ decline with unprecedented precision


From CNN
—The universe came in with the biggest bang ever. But now, with a drooping fizzle, it is in its swan song. The conclusion of a new astronomical study pulls no punches on this: “The Universe is slowly dying,” it reads.

Astronomers have believed as much for years, but the new findings establish the cosmos’ decline with unprecedented precision. An international team of 100 scientists used data from the world’s most powerful telescopes — based on land and in space — to study energy coming from more than 200,000 galaxies in a large sliver of the observable universe. [Full story below or at CNN.com]…

Based on those observations, they have confirmed the cosmos is radiating only half as much energy as it was 2 billion years ago. The astronomers published their study on Monday on the website of the European Southern Observatory.

Analysis across many wavelengths shows the universe's electromagnetic energy output is dropping.The team checked the energy across a broad spectrum of lightwaves and other electromagnetic radiation and says it is fading through all wavelengths, from ultraviolet to far infrared.

Continue reading “Slow death of Universe confirmed with precision” »

Aug 4, 2015

From the Earth to the Moon: 1865/1968

Posted by in categories: alien life, astronomy, space, space travel

How does science fiction become science fact? Often the link between art and science can be hard to pin down. It can be unclear if science fiction is actually influencing science or merely observing it, giving the public sneak peaks into the implications of scientist’s work.

But some work of science fiction create direct links to the future. As a young man in Russia, Konstantin Tsiolkovsky read a translation of Jules Verne’s ‘From the Earth to the Moon.” And although Verne’s plan to get to the moon wouldn’t have worked, the novel had just enough science mixed in with its romance to make the central idea seem plausible. Tsiolkovsky became obsessed with the idea of spaceflight, and his life’s work created the foundations of modern rocketry.

Continue reading “From the Earth to the Moon: 1865/1968” »

Jul 7, 2015

Universe might contain millions of black holes

Posted by in categories: astronomy, gravity, physics, space

[from Engadget]
black_hole_art
Black holes are, by definition, impossible to see by conventional methods and are often further obscured by thick blankets of dust or gas. But that’s not an issue for NASA’s Nuclear Spectroscopic Telescope Array (NuSTAR). It can peek through the obscuring layers and monitor the black holes via the high-energy X-rays that they emit. And, after a recent survey that spotted five previously unknown supermassive black holes in the centers of various galaxies, NASA researchers now think there could be millions of of them dotting the Universe like the holes of an intergalactic colander.

“Thanks to NuSTAR, for the first time, we have been able to clearly identify these hidden monsters that are predicted to be there, but have previously been elusive because of their surrounding cocoons of material,” said George Lansbury of Durham University in a statement. “Although we have only detected five of these hidden supermassive black holes, when we extrapolate our results across the whole universe, then the predicted numbers are huge and in agreement with what we would expect to see.” The team’s research has been accepted for publication in The Astrophysical Journal.

Jul 6, 2015

Evolutionary Biologist Suggests Aliens Look Like Us

Posted by in categories: alien life, astronomy, cosmology, evolution, first contact, space

According to the reputable Australian astro-enthusiast journal, SkyNews, a leading biologist says that it is surprising we have not already discovered extra-terrestrials that look like us — given the growing number of Earth-like planets now discovered by astronomers.

Planet_moonSimon Conway Morris, an evolutionary biologist suggests that aliens resembling humans must have evolved on other planets. He bases the claim on evidence that different species will independently develop similar features which means that life similar to that on Earth would also develop on equivalent planets.

The theory, known as convergence, says evolution is a predictable process which follows a rigid set of rules. Read the full story at Skynews

__________
Philip Raymond is Co-Chair of The Cryptocurrency Standards
Association [crypsa.org] and chief editor at AWildDuck.com

Jun 24, 2015

Dwarf Galaxies Loom Large in Quest for Dark Matter

Posted by in categories: anti-gravity, astronomy, cosmology, energy, general relativity, particle physics, space

Unknown


“In its inaugural year of observations, the Dark Energy Survey has already turned up at least eight objects that look to be new satellite dwarf galaxies of the Milky Way.”

Read more

Jun 22, 2015

Unveiling the ancient climate of Mars By Larry O’Hanlon | Harvard Gazette

Posted by in categories: astronomy, science, space travel

mars_intercomparison_605



“The high seas of Mars may never have existed. According to a new study that looks at two opposite climate scenarios of early Mars, a cold and icy planet billions of years ago better explains the water drainage and erosion features seen today.”

Read more

Jun 17, 2015

New Milky Way Galaxy Map Is The Most Accurate Ever Created By Jacqueline Howard | Huffington Post

Posted by in categories: astronomy, science, space

Like early explorers mapping the continents of our globe, astronomers are busy charting the spiral structure of our galaxy, the Milky Way. Using infrared images from NASA's Spitzer Space Telescope, scientists have discovered that the Milky Way's elegant sp


“[W]ith the help of a new mapping method, scientists have created what they’re calling the most accurate map of the Milky Way. It confirms our galaxy is a four-armed spiral and shows in unprecedented detail a series of star clusters at the galaxy’s edge.”

Read more

Page 4 of 6123456