The "Science and Space" Thread #2

ekim68

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First images from China's Tianwen-1 Mars lander released


The China National Space Administration (CNSA) has released images received from its Tianwen-1 Mars lander. The still and animated images sent from the Red Planet confirm the lander's successful touchdown in the Utopia Planitia region on May 14.

Though the Tianwen-1 lander carrying the Zhurong rover made an autonomous landing on the Martian surface last week, these are the first images of the landing to be released.


moon.jpg
 

ekim68

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Virgin Galactic launches third successful spaceflight


Virgin Galactic's rocket-powered plane, carrying two pilots, soared into the upper atmosphere on its third mission to reach space Saturday morning.

The success cues up Virgin Galactic to begin launching paying customers within the next year as the company works to finish its testing campaign at its new headquarters in New Mexico.

Spaceplane VSS Unity reached an altitude of 55.45 miles, according to the company. The US government recognizes the 50-mile mark as the edge of space.
 

ekim68

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'Super Flower Blood Moon' webcasts: How to watch the supermoon eclipse of 2021 online


The full moon on Wednesday (May 26) will be something to behold, as the only total lunar eclipse of 2021 arrives together with the year's biggest "supermoon."

Skywatchers in much of the world will have a chance to see a slightly larger-than-average full moon temporarily appear red during the so-called "Super Flower Blood Moon." But for those in parts of the world where the eclipse isn't visible — or where clouds foil the view — there will be several free webcasts showing live views of the eclipse online.
 

ekim68

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ekim68

Mike
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Gamma rays 10 times more energetic than thought possible detected


Astronomers have detected the highest-energy light ever seen, streaming in from near the center of the Milky Way. Hundreds of gamma ray signals were detected with ultra-high energies, with the most powerful signals crossing the Peta-electronvolt (PeV) threshold – much higher than thought possible in our galaxy.

Gamma rays are the most energetic type of electromagnetic radiation, released during extreme events like supernovae, matter-antimatter annihilation, and the activity of objects like pulsars. They’re often detected with energies in the Giga-electrovolt (GeV) range, but they’ve been known to occasionally top the Tera-electronvolt (TeV) mark, which is 1,000 GeV.
 

ekim68

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Scientists track meteor shower to unusual comet seen every 4,000 years


Meteor showers are the dazzling result of cometary debris building up along well-worn paths through the solar system, then burning up in Earth's atmosphere as our planet crosses that dust trail.

It's hard to call a path well-worn when something passes by only once every 3,967 years. But it turns out that type of long-period comet can still be tied to a specific meteor shower, as scientists have done with Comet C/2002 Y1 Juels-Holvorcem and the UY Lyncids shower. The research that connected the long haul ice ball and the shower triples the number of celestial displays that scientists have tied to specific comets that take more than 250 years to orbit the sun.
 

ekim68

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Hubble tracks five fast radio bursts back to their home galaxies


Astronomers are another step closer to solving one of the most intriguing cosmic mysteries of recent times – fast radio bursts (FRBs). A team has now traced five signals to their points of origin within the spiral arms of galaxies, narrowing down the list of suspects behind what causes them.

Scientists are nothing if not direct, and the name “fast radio burst” leaves little room for misunderstanding: they’re bursts of radio signals that last mere milliseconds. Sometimes they repeat on a regular or irregular schedule, while others are one-hit wonders. Since the first detection in 2007, hundreds of FRBs have flooded in from all parts of the sky.
galaxy.jpg


 

ekim68

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Imaging breakthrough highlights atoms in highest resolution ever


Researchers at Cornell University have snapped the clearest images of atoms ever taken. Aided by new noise-reducing algorithms, the images are of such high resolution that, the team says, they almost reach the ultimate limit possible.

The images were taken of atoms in a praseodymium orthoscandate (PrScO3) crystal, zoomed in 100 million times. The atoms can be clearly seen as bright dots, surrounded by red “clouds”, which, according to the researchers, are blurring created by the jiggling of the atoms themselves.
 

ekim68

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NASA selects two new Venus missions to investigate why it's so awful


Venus should have been Earth’s twin, but clearly that’s not the case today, with its thick poisonous atmosphere and barren rocky surface. Now, as part of its Discovery Program, NASA has selected two new missions to Venus to investigate where it all went wrong.

Although it garnered a lot of attention during the early space age, Venus was soon discovered to be a very inhospitable place. The first probes to visit had to contend with clouds of sulfuric acid and the crushing pressures at the surface, which are 92 times stronger than Earth’s at sea level. As such, modern space exploration is focused on our more friendly neighbor on the other side, Mars.
 

ekim68

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NASA's Juno to get a close look at Jupiter's moon Ganymede


The first of the gas-giant orbiter's back-to-back flybys will provide a close encounter with the massive moon after over 20 years.

On Monday, June 7, at 1:35 p.m. EDT (10:35 a.m. PDT), NASA's Juno spacecraft will come within 645 miles (1,038 kilometers) of the surface of Jupiter's largest moon, Ganymede. The flyby will be the closest a spacecraft has come to the solar system's largest natural satellite since NASA's Galileo spacecraft made its penultimate close approach back on May 20, 2000.
 

ekim68

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How to watch the 'ring of fire' solar eclipse online on June 10


If you can't catch the next solar eclipse in person, there are several places where you can watch the event live.

The 2021 "ring of fire" annular solar eclipse on Thursday (June 10) will be partially visible from the United States, northern Canada, Europe, northern Asia, Russia and Greenland, according to Time and Date. Space.com has a detailed guide about how to view the eclipse safely in the United States — make sure never to look at the sun without proper equipment, which is listed in the Space.com article.
 

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