Features the most insightful and informative videos on all areas of the sciences, history, philosophy, and the arts, with an additional focus on the values of Humanism, Freethought and methodological Skepticism.
If there are any freely available programs or shows which you know of that I missed, please let me know about them.
Sky & Telescope’s SkyWeek March 10, 2014 - March 16, 2014
Three planets are on display in the predawn sky: dazzling Venus low in the southeast, rapidly brightening Mars in Virgo, and Saturn, the ringed wonder, in Libra.
via Sky & Telescope.
Life On Mars Sim: Practicing ‘Off-World’ Medicine With Earth Supervision
The new world of tele-anesthesiology and tele-surgery is practiced in high altitude Utah by MarsCrew134. The crew’s executive and medical officer Dr. Susan Jewell discusses.
via Video From Space.
Gargantuan Black Hole’s ‘Blow-Torch’ Revealed In Fantastic New Detail
New images of galaxy Centaurus A, equivalent to a single Chandra X-Ray telescope exposure nearly 10 days long taken between 1999 and 2012, shows bright jets from a supermassive black hole. A dark dust lane is a fossil of an ancient galaxy collision.
via Video From Space.
What is a Pulsar?
A pulsar is a neutron star that emits beams of radiation that sweep through Earth’s line of sight. Like a black hole, it is an endpoint to stellar evolution. The “pulses” of high-energy radiation we see from a pulsar are due to a misalignment of the neutron star’s rotation axis and its magnetic axis. Pulsars seem to pulse from our perspective because the rotation of the neutron star causes the beam of radiation generated within the magnetic field to sweep in and out of our line of sight with a regular period, somewhat like the beam of light from a lighthouse. The stream of light is, in reality, continuous, but to a distant observer, it seems to wink on and off at regular intervals.
Pulsars are the original gamma-ray astronomy point sources. A few years after the discovery of pulsars by radio astronomers, the Crab and Vela pulsars were detected at gamma-ray energies. Pulsars accelerate particles to tremendous energies in their magnetospheres. These particles are ultimately responsible for the gamma-ray emission seen from pulsars.
In this video, gamma rays are shown in magenta. Data from NASA’s Fermi Gamma-ray Space Telescope indicate that most of the gamma rays emitted by a pulsar arise from far above the pulsar’s surface.
This video is public domain and can be downloaded at: http://svs.gsfc.nasa.gov/vis/a010000/a010800/a010861/index.html
via NASA explorer.
Life On Mars Sim: Spacesuits Create Challenges On Mock EVA
Interfacing with rovers, laptops and other tech needed to explore the Red Planet, while dealing with the confines of a spacesuit can be difficult. MarsCrew134’s crew engineer Sue Ann discuss her research into the problem.
via VideoFrom Space.
Space Fan News №129 - Hubble observes dissolving asteroid & Kepler celebrates 5 years in space
The Hubble Space Telescope observes an asteroid breaking up.
Kepler Space Telescope celebrates its 5 year anniversary of being in space.
via The Space Fan News.
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Earth from Space: Red Sea gateway
Earth from Space is presented by Kelsea Brennan-Wessels from the ESA Web-TV virtual studios. The ninety-second edition features the city of Jeddah’s seaport on Saudi Arabia’s western coast.
See also http://www.esa.int/spaceinimages/Images/2014/02/Jeddah_s_seaport_Saudi_Arabia to download the image.
A Look At The James Webb Space Telescope’s High Tech Spectrometer
The James Webb Space Telescope will be able to spot multiple objects at the same time with its NIRspec instrument, the first for a satellite spectrometer.
via Video From Space.
Weekly Space Hangout - March 7, 2014: Cosmos Premiere & NASA Budget
Host: Fraser Cain
Astrojournalists: David Dickinson, Matthew Francis, Casey Dreier, Jason Major, Brian Koberlein, Alan Boyle
via Universe Today.
The Countdown №43 - 5 Space Photos that Speak to Our Human Existence
Since at least the 1960s, astronauts and satellites have been snapping photos of planet Earth from on high. While many of these photos possess an intrinsic beauty, some hold important clues about the goings-on of the inhabitants below. In this episode of The Countdown, we bring you five images that speak loudly about the challenges facing the human race.
via Space Lab.
Your Space Babies Would Die Of Fungus!
Ever wonder what would happen if a baby was born in space? Well, recent studies show that there could be some harmful side effects…including the inability to fight off infection! Join Trace and Anthony as they take a look at what the negative effects of fruit flies born into space could mean for humans.
via DNews Channel.
Life On Mars Sim: Extracting Fuel Making Hydrogen From ‘Mars’ Soil
MarsCrew134’s crew scientist Vibha Srivastava describes extracting hydrogen fuel from soil sampled outside a simulated Mars habitat in Utah, a process called “in-situ resource utilization.”
via Video From Space.
Neil deGrasse Tyson: There Is No Center of the Universe
If the universe is expanding, can we use the direction of the expansion to determine the center of the universe, i.e., where the Big Bang happened? In a word, “No.” Find out why when astrophysicist Neil deGrasse Tyson and comic co-host Eugene Mirman answer a fan’s Cosmic Query in this StarTalk Radio “Behind the Scenes” video.
via Star Talk Radio.
Active Galaxy Hercules A in 3D: Visible & Radio Comparison
This is the stereo 3D version of “Active Galaxy Hercules A: Visible & Radio Comparison.”
The active galaxy Hercules A was given that name because it is the brightest radio source in the constellation of Hercules. Astronomers found that the double-peaked radio emission corresponded to a giant elliptical galaxy cataloged as 3C 348. Unusually, this behemoth galaxy is not found within a large cluster of hundreds of galaxies, but rather within a comparatively small group of dozens of galaxies. The ‘active’ part of the galaxy is the supermassive black hole in its core, which spews out strong jets of energetic particles that produce enormous lobes of radio emission. Some astronomers suspect that Hercules A may be the result of two galaxies merging together.
This video envisions a three-dimensional look at the combined visible light (Hubble Space Telescope) and radio emission (Very Large Array) from Hercules A. The size of these radio lobes dwarfs the large galaxy and extends throughout the volume of the galaxy group. This visualization is intended only to be a scientifically reasonable illustration of the three-dimensional structures. In particular, the galaxy distances within the group are based on a statistical model, and not measured values.
via Hubble Site Channel.
Photographing the Grand Canyon from Space
How do you touch space without even leaving the ground? Near Space Photographer John Flaig outfits weather balloons with cameras to capture novel images of iconic landscapes, such as the Grand Canyon.
Explore the Colorado River, the life and soul of the American West:
via National Geographic.