17 posts tagged universe
The Horsehead Nebula, a part of the optical nebula IC434 and also known as Barnard 33, was first recorded in 1888 on a photographic plate taken at the Harvard College Observatory. Its coincidental appearance as the profile of a horse’s head and neck has led to its becoming one of the most familiar astronomical objects. It is, in fact, an extremely dense cloud projecting in front of the ionized gas that provides the pink glow so nicely revealed in this GIF.
as read on fromquarkstoquasars.com
Given all of the recent coverage on the radical idea that the universe is one massive hologram, we thought we would take a few minutes to delve into what that really means for us. Basically, the holographic universe principle suggests that we’re living in a simulated reality (different from the hypothesis that states we live in a computer simulation), where our physical world is nothing more than a detailed illusion. This illusion is actually projected by our brains, as energy fields are being decoded into the seemingly 3 dimensional universe we see around us. In a more speculative sense, the theory suggests that the entire universe can be seen as a two-dimensional information structure, which is “painted” on the cosmological horizon, such that the three dimensions (four, if you include time) we observe are only an effective description at macroscopic scales and at low energies.
An enormous hurricane raging at Saturn’s north pole has an eye 2,000km (1,250mi) across - big enough to cover the UK 12 times over.
The striking images of the storm were snapped from a height of 420.000km (260,000mi) by the Cassini spacecraft, which arrived at Saturn in 2004.
They were captured in red and infrared wavelengths and have been false-coloured to show detail.
Explanation: The Whirlpool Galaxy is a classic spiral galaxy. At only 30 million light years distant and fully 60 thousand light years across, M51, also known as NGC 5194, is one of the brightest and most picturesque galaxies on the sky. The aboveimage is a digital combination of a ground-based image from the 0.9-meter telescope at Kitt Peak National Observatory and a space-based image from the Hubble Space Telescope highlighting sharp features normally too red to be seen. Anyone with a good pair of binoculars, however, can see this Whirlpool toward the constellation of the Hunting Dogs (Canes Venatici. M51 is a spiral galaxy of type Sc and is the dominant member of a whole group of galaxies. Astronomers speculate that M51’s spiral structure is primarily due to its gravitational interaction with a smaller galaxy just off the top of the image.
Echolab is a studio specialized in sound design. They have imagined with the motion design studio Korb what would the spread of sound be like on Mars. The result is simply amazing, both for visuals and sounds.
A gale is very strong wind. Gale is also a crater on Mars where NASA Curiosity rover landed on August 2012. It is the most advanced mobile robotic science lab ever to explore another planet. The rover aims to behave for a Martian year, but the nuclear power source may last for 14 years. What does the future hold for Curiosity? Will Mars rover ever leave Gale Crater?
Astronomers have conclusively measured the spin of a black hole for the first time by detecting the mind-bending relativistic effects that warp space-time at the very edge of its event horizon — the point of no return, beyond which even light cannot escape.
Higgs-like particle suggests it might
If the “Higgs-like particle” discovered last year is really the long-sought Higgs boson, the bad news is that its mass suggests the universe will end in a fast-spreading bubble of doom. The good news? It’ll probably be tens of billions of years before that particular doomsday arrives.
That’s one of the weirder twists coming out of the continuing analysis of results from Europe’s Large Hadron Collider, which produced the first solid evidence for the existence of the Higgs boson last year. Current theory holds that the Higgs boson plays a role in imparting mass to other fundamental particles. Confirming the discovery of the Higgs would fill in the last blank spot in that theory, known as the Standard Model.
Physicists discussed the state of the Higgs quest in Boston on Monday during the annual meeting of the American Association for the Advancement of Science.
World’s highest radio telescope captures image (left) providing evidence of how ‘gas’ planets are formed
The world’s highest radio telescope, built on a Chilean plateau in the Andes 5,000 metres above sea level, has captured the first image of a new planet being formed as it gobbles up the cosmic dust and gas surrounding a distant star.
On the 40th anniversary of the famous ‘Blue Marble’ photograph taken of Earth from space, Planetary Collective presents a short film documenting astronauts’ life-changing stories of seeing the Earth from the outside – a perspective-altering experience often described as the Overview Effect.
The publication of Andreas Cellarius’ Harmonia Macrocosmica in 1660 forms the final chapter of an ambitious cartographic project initiated 25 years earlier by the Amsterdam publisher Johannes Janssonius (1588-1664), namely, the publication of an ATLAS in several volumes which described not only the surface of the Earth but the whole of Creation, including the cosmos and its history.
What does the universe look like on small scales? On large scales? Humanity is discovering that the universe is a very different place on every proportion that has been explored. For example, so far as we know, every tiny proton is exactly the same, but every huge galaxy is different. On more familiar scales, a small glass table top to a human is a vast plane of strange smoothness to a dust mite — possibly speckled with cell boulders. Not all scale lengths are well explored — what happens to the smallest mist droplets you sneeze, for example, is a topic of active research — and possibly useful to know to help stop the spread of disease. The below interactive flash animation, a modern version of the classic video Powers of Ten, is a new window to many of the known scales of our universe. By moving the scroll bar across the bottom, you can explore a diversity of sizes, while clicking on different items will bring up descriptive information. (text source)
experience it on the official website on it’s actual size
Flash Animation Credit & Copyright : Cary & Michael Huang
14 year old Cary said he invites people to correct any errors they find. This is the second version.
Powers of Ten is a 1968 American documentary film written and directed by Charles and Ray Eames. The film depicts the relative scale of the Universe in factors of ten (see also logarithmic scale and order of magnitude)
duration 9 mins