Posts Tagged ‘Ranger 4’
“Outer space is so empty”*…
At the furthest-most reaches of the observable universe lies one of the most enigmatic mysteries of modern cosmology: the cosmic microwave background (CMB) Cold Spot.
Discovered in 2004, this strange feature etched into the primordial echo of the Big Bang has been the focus of many hypotheses — could it be the presence of another universe? Or is it just instrumental error? Now, astronomers may have acquired strong evidence as to the Cold Spot’s origin and, perhaps unsurprisingly, no multiverse hypothesis is required. But it’s not instrumental error either…
The Cold Spot area resides in the constellation Eridanus in the southern galactic hemisphere. The insets show the environment of this anomalous patch of the sky as mapped using PS1 and WISE data and as observed in the cosmic microwave background temperature data taken by the Planck satellite. The angular diameter of the vast supervoid aligned with the Cold Spot, which exceeds 30 degrees, is marked by the white circles.
More at “Mysterious ‘Cold Spot’: Fingerprint of Largest Structure in the Universe?”
* Theodore Sturgeon
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As we boldly go, we might recall that it was on this date in 1962 that NASA launched the Ranger 4, the first U.S. spacecraft to reach another celestial body. Ranger 4 was designed to transmit pictures to Earth and to test the radar-reflectivity of the lunar surface during a period of 10 minutes of flight prior to crashing upon the Moon, “rough-landing” a seismometer capsule as it did. In the event, an onboard computer glitch caused failure of the solar panels and navigation systems; as a result the spacecraft crashed on the far side of the Moon three days after it’s launch without returning any scientific data. Still, the “landing” was a first.
Happy Shakespeare’s Birthday!
It’s a Dirty Job, Redux…
The good folks at PopSci have poked through “the hard, dangerous and downright grody work involved in truly audacious science,” and compiled a list that, even in a time of near-10% unemployment, one might consider cautionary: “The Ten Worst Jobs in Science.”
By way of example, beware…
Bad Dance Observer
It’s no chore to watch supermodels shake it in a nightclub. But Peter J. Lovatt, a former professional dancer and a psychologist at the University of Hertfordshire in England, must examine the often unflattering gyrations of everyone from preteens to the elderly in search of the influences and motivations behind human dancing. Lovatt and his team record videos of the dancers and then quantify their groove thang using a special movement-analysis technique and software. Other times, observers rate traits such as the overall attractiveness of the dancers’ movements on video, or the observers wear a visor that tracks what elements of the dancer they are looking at. Findings suggest that young women rate the dancing of middle-aged men as less attractive than the dance moves of younger men, perhaps an evolutionary trait that discourages women from choosing older mates—middle– aged men tend to use big, uncoordinated movements, and women typically find complex movement most attractive. But don’t lose hope. Above age 60, men dance with more complexity. They also exhibit their highest dance confidence at that age. No wonder grandpa thinks he works it so good.
Other employment opportunities one might skip at “The Ten Worst Jobs in Science.”
As we wonder what became of Mr. Wizard, we might recall that it was on this date in 1962 that the first American satellite to reach the Moon surface, the Ranger IV, was launched from Cape Canaveral, impacting the Moon three days later. The spacecraft was designed to drop a scientific package on the back side of the Moon that would return seismic, radar and television information to Earth. Instead, the probe had a computer failure; the solar panels did not extend, and the satellite crashed on the Moon. Still, though it failed its full mission, it was the first US object on the Moon.
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