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Mars Base

Baby Mammoths & Feathered Dinosaurs | SciByte | Jupiter Broadcasting - 0 views

www.jupiterbroadcasting.com/...feathered-dinosaurs-scibyte-41

scibyte42 dinosaur

shared by Mars Base on 12 Apr 12 - No Cached
  • Baby Mammoths & Feathered Dinosaurs | SciByte 41
  • April 10, 2012
  • More Fine Feathered Dinosaurs
Mars Base

Curiosity Rover | SciByte | Jupiter Broadcasting - 0 views

www.jupiterbroadcasting.com/...curiosity-rover-scibyte-21

scibyte42 Europa

shared by Mars Base on 12 Apr 12 - No Cached
  • Curiosity Rover | SciByte 22
  • November 22, 2011
  • Jupiter’s ice-moon Europa
Mars Base

Solar Storms & Higgs Boson | Jupiter Broadcasting - 0 views

www.jupiterbroadcasting.com/...-storms-higgs-boson-scibyte-37

scibyte39 moon MarMedia apollo scibyte42 dinosaur

shared by Mars Base on 22 Mar 12 - No Cached
  • Solar Storms & Higgs Boson | SciByte 37
  • March 13, 2012
  • More Dinosaur feathers get color
Mars Base

Sub Glacial Lakes | Jupiter Broadcasting - 0 views

www.jupiterbroadcasting.com/...acial-lakes-updates-scibyte-33

scibyte42 Europa Alzheimer

shared by Mars Base on 12 Apr 12 - No Cached
Mars Base

Habitable Planets & Chimps | Jupiter Broadcasting - 0 views

www.jupiterbroadcasting.com/...able-planets-chimps-scibyte-24

scibyte42 Alzheimer

shared by Mars Base on 12 Apr 12 - No Cached
  • Habitable Planets & Chimps | SciByte 24
  • December 7, 2011
  • Alzheimer’s Research
Mars Base

Feedback & Space Lego's | Jupiter Broadcasting - 0 views

www.jupiterbroadcasting.com/...eedback-space-legos-scibyte-31

scibyte42 dinosaur

shared by Mars Base on 12 Apr 12 - No Cached
  • Feedback & Space Lego’s | SciByte 31
  • January 31, 2012
  • Dinosaur feather colors
Mars Base

Moons Here & There | Jupiter Broadcasting - 0 views

www.jupiterbroadcasting.com/...moons-here-there-scibyte-28

scibyte42 exoplanet

shared by Mars Base on 12 Apr 12 - No Cached
  • Moons Here & There | SciByte 28
  • January 10, 2012
  • The Exoplanet and Exomoon News keeps coming
Mars Base

Habitable Planets & Plant Power | Jupiter Broadcasting - 0 views

www.jupiterbroadcasting.com/...planets-plant-power-scibyte-32

scibyte42 exoplanet

shared by Mars Base on 12 Apr 12 - No Cached
  • Habitable Planets & Plant Power | SciByte 32
  • February 7, 2012
  • Habitable planet?
Mars Base

Exoplanets & Social Media | Jupiter Broadcasting - 0 views

www.jupiterbroadcasting.com/...lanets-social-media-scibyte-29

scibyte42 exoplanet

shared by Mars Base on 12 Apr 12 - No Cached
  • Exoplanets & Social Media | SciByte 29
  • January 17, 2012
  • The exoplanets never stop coming
Mars Base

2012 Venus Transit - The Countdown Is On! - 0 views

www.universetoday.com/...us-transit-the-countdown-is-on

scibyte45 venus transit scibyte49 scibyte48

shared by Mars Base on 04 May 12 - No Cached
  • On June 5 (June 6 in Australia and Asia), it will pass between the Earth and Sun… an event which only happens about twice and century and won’t happen again until the year 2117!
  • now is the time to begin your preparations to view the transit of Venus.
  • Because the transit of Venus is such a rare event, many retailers are carrying special eclipse/transit viewing glasses
  • ...9 more annotations...
  • appear much like the cardboard 3D glasses you get at the movie theatre, but instead of red and blue lenses, they will have either black mylar or Baader filter film.
  • inspect the edges carefully to make sure they are sealed and no sunlight can enter
  • do not use them in conjunction with binoculars or a telescope
  • meant strictly for use with your eyes
  • Concentrating sunlight with an optical aid and hoping the glasses will be enough to block the Sun’s harmful rays is taking a chance at blinding yourself
  • . If you plan on filming
  • now is the time to practice
  • Make sure well in advance of exactly what time the transit starts in your area
  • times are given on an astronomical standard – Universal Time. If you are unsure of how to convert, try the Time Zone Converter to assist you.
Mars Base

The Night Sky Guide for April 2012 | meteorwatch.org - 0 views

www.meteorwatch.org/...night-sky-guide-for-april-2012

scibyte41 LookingUp scibyte42 scibyte43

shared by Mars Base on 02 Apr 12 - No Cached
  • The Lyrid meteor shower will be best seen in the early morning hours of April 22nd. Under a dark sky, you can expect to see up to 20 bright meteors per hour.
  • Evening Planets
  • In early April, four planets grace the sky at nightfall
  • ...6 more annotations...
  • In the west, Jupiter hangs low on the horizon. Around mid-month, the planet disappears into the sunset
  • Venus blazes just above Jupiter in the west. Use a telescope to see its crescent phase.
  • In the south, Mars is already climbing high. It will remain visible into the early morning
  • Saturn will shine low in the east in the evening but climb higher during the night. On April 15th, Saturn reaches opposition, meaning it is opposite the Sun in Earth’s sky. It is also closer to Earth than it’ll be the rest of the year, making it appear slightly bigger and brighter
  • Constellations and Deep-Sky Objects
    • Mars Base
      Mars Base on 11 Apr 12
       
      YouTube Video
Mars Base

Tonight's Sky: April 2012 - YouTube - 0 views

www.youtube.com/watch

scibyte41 scibyte42 scibyte43 tonightssky

shared by Mars Base on 04 Apr 12 - No Cached
  • April 2012
  • produced by HubbleSite.org
Mars Base

Space Shuttle Endeavour Taking Cross-Country Flight for Display | Space.com - 0 views

www.space.com/ur-museum-flight-schedule.html

scibyte62 scibyte63 scibyte67 shuttle

shared by Mars Base on 07 Sep 12 - No Cached
  • The trip is set to begin on Sept. 17, weather permitting, at NASA's Kennedy Space Center in Cape Canaveral, Fla., and culminate at Los Angeles International Airport (LAX) on Sept. 20
  • The carrier aircraft will arrive at Kennedy Space Center on Sept. 11
  • Three days later, the orbiter will be rolled out to meet the SCA at the Shuttle Landing Facility (SLF), where Endeavour returned to Earth for its 25th and final time in the early morning hours of June 1, 2011
  • ...13 more annotations...
  • Endeavour will be hoisted off the ground by crane
  • then be lowered onto the SCA's back and secured for flight
  • Coordinating with the Federal Aviation Administration, the SCA will perform low flyovers — as low as 1,500 feet (457 meters) — as it passes NASA's Stennis Space Center in Mississippi and the agency's Michoud Assembly Facility in New Orleans.
  • low passes over areas around Houston, Clear Lake and Galveston in Texas before making a landing at Ellington Field near NASA's Johnson Space Center.
  • Weather permitting, the SCA and Endeavour will remain at Ellington for the remainder of the day and all day on Sept. 18, providing Johnson employees and the Houston public an ample opportunity to see the shuttle.
  • take to the air again at sunrise on Sept. 19, and after a brief refueling stop at Biggs Army Airfield in El Paso, Texas
  • low-level flyovers of White Sands Test Facility near Las Cruces, N.M., and Dryden Flight Research Center at Edwards Air Force Base in California
  • morning of Sept. 20
  • Finally on the morning of Sept. 20, Endeavour, still on top of the SCA, will take off one last time, departing Dryden to fly over Northern California, passing above NASA's Ames Research Center at Moffett Field and various landmarks in multiple cities, including San Francisco and Sacramento, the state's capitol
  • The carrier aircraft will fly near
  • , the Jet Propulsion Laboratory in Pasadena before performing flyovers over many Los Angeles landmarks on its way to a landing at LAX
  • According to NASA, some of the flyovers or layovers that are planned could be delayed or cancelled as a result
  • flies over seven states and eight of NASA's facilities
Mars Base

Space College: ISEE-3 Reboot Project Archives - 0 views

spacecollege.org/isee3

scibyte134 scibyte133 scibyte132 ISEE-3

shared by Mars Base on 02 Jun 14 - No Cached
  • It has 4 large antennas that span 91 meters and it spins
  • once every 3 seconds
  • Using GNU Radio to Talk to ISEE-3
  • ...16 more annotations...
  • What ISEE-3 Really Looks Like
  • successfully
  • uplink commands to the space craft
  • accomplished through a lot of team work, strong leadership
  • and generous support from the community at large
  • designed a deep-space uplink modulator in a couple of days,
  • products like the Ettus Research USRP, the open source SDR framework GNU Radio have made this exceedingly easy.
  • 12 June 2014
  • telemetry from ISEE-3 indicating that its entire suite of science instruments is powered up and has been powered up since NASA last commanded the spacecraft many years ago
  • getting data back from the magentometer that indicates that science data is coming back
  • Just because an instrument is powered up doesn't mean that it is functioning normally
  • some of the ISEE-3 instruments had begun to fail or become partially functional as early as 1982
  • plans to briefly fire two of the spacecraft's thrusters on 21 June so as to spin it up from 19.16 rpm to the mission specification of 19.75 +/- 0.2 rpm
  • spin-up target is 19.733 rpm
  • This burn would utilize spin-up thrusters A and B
  • This optimal spin rate is required in order to properly fire the axial thrusters during the much longer trajectory correction maneuver (TCM) we need to perform to adjust the spacecraft's course
Mars Base

'God particle' discovery poses Nobel dilemma - 0 views

phys.org/...cle-discovery-poses-nobel.html

scibyte66 scibyte67 HiggsBoson

shared by Mars Base on 08 Oct 12 - No Cached
  • But whether the July 4 fireworks will unlock the great prize is unclear.
  • cautious, given that the new particle has not yet been officially sealed as the Higgs.
  • almost certain it is the coveted beast
  • ...14 more annotations...
  • y still need to confirm this
  • s further work to see how it behaves and reacts with other particles
  • there is a remote possibility that the new particle is not the Higgs, although this would be an even more groundshaking announcement.
  • six physicists, each building on the work of others, published a flurry of papers on aspects of the theory within four months of each other back in 1964.
  • The first were Belgians Robert Brout, who died last year, and Francois Englert.
  • followed by Higgs, who was the first to say only a new particle would explain the anomalies of mass
  • further complication is that thousands of physicists worked in the two labs at CERN's Large Hadron Collider near Geneva where Higgs experiments were conducted independently of each other.
  • decide whether theoreticians or experimentalists—or both—should get the glory.
  • At most three names, although they can include organisations, can share a Nobel
  • e prize cannot be given posthumously.
  • The Nobel will "eventually" go to the Higgs
  • s not yet certain that the newly-discovered particle is in fact a Higgs boson
  • nothing stopping us from giving the prize to an organisation. But it has not been the custom in the scientific prizes
  • The Nobel Peace Prize has often been awarded to organisations. But in the science prizes we have tried to find the most prizeworthy individuals
Mars Base

Did NASA's Voyager 1 Spacecraft Just Exit the Solar System? | Space.com - 0 views

www.space.com/r-spacecraft-solar-system.html

scibyte66 scibyte67 Voyager1

shared by Mars Base on 09 Oct 12 - No Cached
  • Scientists are crunching one more set of numbers to find out for sure.
  • New data from the spacecraft indicate that the historic moment of its exit from the solar system might have come and gone two months ago
  • For two years now, data beamed back to Earth by Voyager 1 has hinted at its close approach to the edge of the solar system, a pressure boundary called the heliopaus
  • ...20 more annotations...
  • bubble of electrically charged particles blowing outward from the sun (called the heliosphere) exactly counterbalances the inward pressure of the gas and dust from interstellar space, causing equilibrium between the two
  • scientists have had trouble figuring out what, exactly, happens at or near this boundary — making it hard to tell whether Voyager has crossed it
  • In 2010, Voyager passed the point where the solar wind, a stream of charged particles flowing outward from the sun, seemed to
  • indicated that the wind had suddenly died down, and all the surrounding solar particles were at a standstill
  • "stagnation region" came as a surprise
  • expected to see the solar wind veer sideways
  • the perplexing collapse of the solar wind at the edge of the heliosphere left them without a working model for the outer solar system
  • no well-established criteria of what constitutes exit from the heliosphere
  • "All theoretical models have been found wanting."
  • a space scientist at Johns Hopkins who works with Voyager 1 data, said that in any model of the heliopause, an object exiting through it should experience three changes: a sharp rise in the number of collisions with cosmic rays (high-energy particles from space), a dramatic drop in the number of collisions with charged particles from the sun, and a change in the direction of the surrounding magnetic field.
  • Based on two of those criteria, Voyager 1 looks as if it passed through the heliopause at the end of the summer
  • The level of these cosmic ray collisions jumped significantly in late August.
  • spacecraft has experienced a steady rise in the number of collisions with particles whose energies are greater than 70 Mega-electron-volts, indicating they are probably cosmic rays emanating from supernova explosions far beyond the solar system
  • in late August, cosmic ray collisions sharply rose, and solar particle collisions sharply fell: two indicators of a transition through the heliopause
  • To officially declare Voyager's crossing, the scientists need to check if the third condition holds
  • change in magnetic field direction
  • e interstellar field beyond the influence of the sun) is critical because, even though there is debate among astrophysicists as to what direction the field will lie in
  • unlikely that it is the direction that we have been seeing at Voyager 1 throughout the most recent years
  • scientists could not say when the magnetic field analysis would be finished. But when it is
  • Once we have a consensus within the team we will inform NASA for a proper announcement,
Mars Base

Heart repair breakthroughs replace surgeon's knife - 0 views

medicalxpress.com/...eakthroughs-surgeon-knife.html

scibyte87 scibyte88 heart

shared by Mars Base on 25 Mar 13 - No Cached
  • Many problems that once required sawing through the breastbone and opening up the chest for open heart surgery now can be treated
  • through a tube
  • These minimal procedures used to be done just to unclog arteries and correct less common heart rhythm problems
  • ...42 more annotations...
  • Now some patients are getting such repairs for valves, irregular heartbeats, holes in the heart and other defects—without major surgery
  • Doctors even are testing ways to treat high blood pressure with some of these new approaches
  • Instead of opening the chest, we're able to put catheters in through the leg, sometimes through the arm
  • Many patients after having this kind of procedure in a day or two can go home
  • It may lead to cheaper treatment, although the initial cost of the novel devices often offsets the savings from shorter hospital stays
  • Not everyone can have catheter treatment, and some promising devices have hit snags in testing
  • Others on the market now are so new that it will take several years to see if their results last as long as the benefits from surgery do.
  • these procedures have allowed many people too old or frail for an operation to get help for problems that otherwise would likely kill them
  • You can do these on 90-year-old patients
  • also offer an option for people who cannot tolerate long-term use of blood thinners or other drugs to manage their conditions
  • Heart valves
  • Millions of people have leaky heart valves. Each year, more than 100,000 people in the United States alone have surgery for them
  • Without a valve replacement operation, half of these patients die within two years, yet many are too weak to have one.
  • just over a year ago,
  • Edwards Lifesciences Corp. won approval to sell an artificial aortic valve flexible and small enough to fit into a catheter and be wedged inside the bad one
  • At first it was just for inoperable patients. Last fall, use was expanded to include people able to have surgery but at high risk of complications.
  • Catheter-based treatments for other valves also are in testing. One for the mitral valve
  • mixed review by federal Food and Drug Administration advisers this week; whether it will win FDA approval is unclear. It is already sold in Europe
  • Heart rhythm problems
  • Catheters can contain tools to vaporize or "ablate" bits of heart tissue that cause abnormal signals that control the heartbeat
  • Now catheter ablation is being used for the most common rhythm problem—atrial fibrillation, which plagues about 3 million Americans and 15 million people worldwide.
  • Ablation addresses the underlying rhythm problem. To address the stroke risk from pooled blood, several novel devices aim to plug or seal off the pouch
  • The upper chambers of the heart quiver or beat too fast or too slow. That lets blood pool in a small pouch off one of these chambers
  • Clots can form in the pouch and travel to the brain, causing a stroke
  • a tiny lasso to cinch the pouch shut. It uses two catheters that act like chopsticks. One goes through a blood vessel and into the pouch to help guide placement of the device, which is contained in a second catheter poked under the ribs to the outside of the heart. A loop is released to circle the top of the pouch where it meets the heart, sealing off the pouch.
  • A different kind of device
  • sold in Europe and parts of Asia, but is pending before the FDA in the U.S
  • like a tiny umbrella pushed through a vein and then opened inside the heart to plug the troublesome pouch.
  • Early results from a pivotal study released by the company suggested it would miss a key goal, making its future in the U.S. uncertain.
  • Heart defects
  • St. Jude Medical Inc.'s Amplatzer is a fabric-mesh patch threaded through catheters to plug the hole
  • In two new studies, the device did not meet the main goal of lowering the risk of repeat strokes in people who had already suffered one, but some doctors were encouraged by other results
  • Сlogged arteries
  • The original catheter-based treatment—balloon angioplasty—is still used hundreds of thousands of times each year in the U.S. alone
  • A Japanese company, Terumo Corp., is one of the leaders of a new way to do it that is easier on patients—through a catheter in the arm rather than the groin
  • Newer stents that prop arteries open and then dissolve over time, aimed at reducing the risk of blood clots, also are in late-stage testing
  • High blood pressure
  • About
  • 1 billion people worldwide have high blood pressure, a major risk factor for heart attacks
  • Researchers are testing a possible long-term fix for dangerously high pressure that can't be controlled with multiple medications.
  • uses a catheter and radio waves to zap nerves, located near the kidneys, which fuel high blood pressure
  • At least one device is approved in Europe and several companies are testing devices in the United States
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