The "Science and Space" Thread #2

ekim68

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How old is the universe? New studies disagree by a billion years


The universe likes to play coy about its age, but astronomers believe they have a pretty good idea of the range. Now, a series of new studies has investigated the question using different methods – and they’ve come up with two different answers, separated by more than a billion years.

Currently, the most widely accepted age for the universe is around 13.8 billion years, but determining the age of … well, everything, is no easy feat. There are several key calculations that need to be done, and checked against each other. The problem is, these can be figured out in different ways, resulting in different answers.
 

ekim68

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ALMA finds possible sign of neutron star in supernova 1987A


Two teams of astronomers have made a compelling case in the 33-year-old mystery surrounding Supernova 1987A. Based on observations of the Atacama Large Millimeter/submillimeter Array (ALMA) and a theoretical follow-up study, the scientists provide new insight for the argument that a neutron star is hiding deep inside the remains of the exploded star. This would be the youngest neutron star known to date.
 

ekim68

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Tough Decisions Loom as Voyager Just Keeps Going and Going…


The Voyager spacecraft are still functioning 42 years after launch, and NASA recently announced a plan to keep these intrepid space travelers functioning as they continue their journeys beyond the Solar System. However, as power on each of the two craft continues to dwindle, difficult decisions need to be made soon regarding the future of the most-traveled spacecraft ever produced by humans.
 

ekim68

Mike
Joined
Jul 8, 2003
Messages
56,557

ekim68

Mike
Joined
Jul 8, 2003
Messages
56,557

Stadium-sized balloon to carry NASA telescope to the edge of space


Balloons may seem like an outdated mode of transportation, but for high-flying scientific instruments they’re making a comeback. NASA has unveiled ASTHROS, a new infrared telescope that will be carried to the edge of space by a balloon the size of a football stadium.

ASTHROS, short for Astrophysics Stratospheric Telescope for High Spectral Resolution Observations at Submillimeter-wavelengths, will view the cosmos in far-infrared light. These wavelengths are blocked by Earth’s atmosphere, so infrared observatories are usually space-based, such as Spitzer, Herschel, and the Infrared Space Observatory.
assets.newatlas.jpg
 

ekim68

Mike
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Watch SpaceX's shimmering Starship prototype fly to 500 feet


While its feats flying astronauts to and from the International Space Station rightly generate a lot of the headlines, the SpaceX team has been busily working on the vehicle that could take humans well past this point in low-Earth orbit. Development of this Starship spacecraft continues at the company’s Boca Chica site in Texas, where the team just performed a 150-meter (500-ft) hop test of a full-size prototype.
 

ekim68

Mike
Joined
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Messages
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Seasonal ultraviolet light pulses in Martian skies three times a night


A NASA spacecraft has observed a pulsing glow coming from Mars. Huge spots of ultraviolet light were seen in the night sky, pulsing with uncanny regularity – exactly three times every night. The find highlights (literally) the atmospheric processes and circulation patterns of the Red Planet.
But it’s the specificity of the light that’s most intriguing. MAVEN data revealed that the UV light only shows up during the Martian spring and fall seasons, and it pulses exactly three times each night. The show begins just after sunset and it’s all over by midnight.
 

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