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The "Science and Space" Thread #2

382K views 6K replies 43 participants last post by  ekim68 
#1 ·
Big Bang Conditions Created in Lab.

By smashing gold particles together at super-fast speeds, physicists have basically melted protons, creating a kind of "quark soup" of matter that is about 250,000 times hotter than the center of the sun and similar to conditions just after the birth of the universe.

-- Tom
 
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#4,787 ·

Is the universe's dark matter hiding in primordial black holes?


A new model by a team of scientists led by Yale University suggests that the ever elusive dark matter that has so far escaped the detection of scientists may be trapped inside primordial black holes left over after the Big Bang.

If or when the James Webb Space Telescope is fully commissioned and begins its observations into the evolution of the early universe, it may be able to shed light on one of the great mysteries of modern physics: does dark matter exist and, if so, what is it?
 
#4,788 ·

Jupiter's moons are about to get JUICE'd for signs of life


The European Space Agency will soon send JUICE, or the JUpiter ICy moons Explorer on a mission to scout out Jupiter and three of its 79 moons: Europa, Callisto, and Ganymede.

Scheduled to launch in April 2023, JUICE will blast off from an Ariane 5 rocket before embarking on a 7.6-year journey to reach the gas giant. Broken up by multiple gravitational assists-or pushes that help adjust a spacecraft's speed and trajectory-from Venus and Earth, the explorer will carry some of the most powerful remote sensing and geophysical instruments ever flown to the outer solar system.
 
#4,789 ·

Matter and antimatter respond to gravity in the same way, study finds


Matter and antimatter behave the same way under the influence of gravity, a new study found, leaving scientists no wiser as to what makes the two different.

Antimatter is the puzzling stuff created during the Big Bang together with normal matter. It is virtually normal matter's mirror - exactly the same, only with the opposite electrical charge. For every proton, there should be an antiproton, for every electron an antielectron, which is also known as a positron.
 
#4,792 ·

Amazon teams up with Lockheed Martin and Cisco to put Alexa voice assistant on NASA's moon ship


Putting Amazon's AI-enabled voice assistant on a moon-bound spaceship may sound like science fiction (hello, HAL!). But it's due to become science fact later this year when a radiation-hardened console rides along in NASA's Orion deep-space capsule for the Artemis 1 round-the-moon mission.

There'll be no humans aboard for the test flight, which will mark the first launch of NASA's heavy-lift Space Launch System rocket. Instead, Alexa's voice, and Echo's pulsing blue ring, will be interacting with operators at Houston's Mission Control for a technology demonstration created by Lockheed Martin, Amazon and Cisco.
 
#4,793 ·

Yes, there is really 'diamond rain' on Uranus and Neptune


The ice giants Uranus and Neptune don't get nearly enough press; all the attention goes to their larger siblings, mighty Jupiter and magnificent Saturn.

At first glance, Uranus and Neptune are just bland, boring balls of uninteresting molecules. But hiding beneath the outer layers of those worlds, there may be something spectacular: a constant rain of diamonds.
 
#4,795 ·

Largest-ever 3D map of the universe reveals gigantic cosmic web


Data from the Dark Energy Spectroscopic Instrument's (DESI's) first survey run has produced the largest and most detailed 3D map of the universe so far. The stunning image reveals the gigantic cosmic web of galaxies across billions of light-years - and this is only the beginning for the project.

The image contains 7.5 million galaxies within a distance of about 5 billion light-years in the direction of the constellation Virgo, with Earth located at the lower left.
 
#4,798 ·
#4,799 ·

Newly discovered carbon may yield clues to ancient Mars


NASA's Curiosity rover landed on Mars on Aug. 6, 2012, and since then has roamed Gale Crater taking samples and sending the results back home for researchers to interpret. Analysis of carbon isotopes in sediment samples taken from half a dozen exposed locations, including an exposed cliff, leave researchers with three plausible explanations for the carbon's origin -- cosmic dust, ultraviolet degradation of carbon dioxide, or ultraviolet degradation of biologically produced methane.
 
#4,800 ·

SpaceX satellites now appearing in 1 in 5 of telescope's twilight images


SpaceX's aspirations to blanket the Earth in high-speed internet through a constellation of orbiting satellites continues apace, and a new study demonstrates the significant mark they are already making on the world of astronomical imaging. As the number of satellites in low-Earth orbit has grown rapidly over the past two years, researchers have found they are now affecting almost a fifth of important twilight observations, though they describe the overall scientific impacts as small, for now.
 
#4,801 ·

James Webb Space Telescope marks deployment of all mirrors


"Just in from the @NASAWebb team: All 18 primary mirror segments and the secondary mirror are now fully deployed!" NASA Administrator Bill Nelson wrote in a tweet posted on Wednesday (Jan. 19). "Congratulations to the teams that have been working tirelessly since launch to get to this point. Soon, Webb will arrive at its new home, L2!"
 
#4,803 ·
#4,805 ·

Hubble finds a black hole igniting star formation in a dwarf galaxy


Often portrayed as destructive monsters that hold light captive, black holes take on a less villainous role in the latest research from NASA's Hubble Space Telescope. A black hole at the heart of the dwarf galaxy Henize 2-10 is creating stars rather than gobbling them up. The black hole is apparently contributing to the firestorm of new star formation taking place in the galaxy. The dwarf galaxy lies 30 million light-years away, in the southern constellation Pyxis.
 
#4,808 ·

James Webb Space Telescope arrives at new home in space


After traveling almost a million miles, NASA's James Webb Space Telescope reached its final destination today (Jan. 24).

The most powerful observatory ever to launch to space, the James Webb Space Telescope lifted off on Dec. 25, 2021 to explore the cosmos and our universe's earliest milestones. Since its successful takeoff, the $10 billion telescope has been busy deploying its various systems and structures and traveling over 930,000 miles (1.5 million kilometers) to its new home: L2, the second sun-Earth Lagrange point, which it will orbit. Lagrange points are gravitationally stable points in space.
 
#4,810 ·

Discarded SpaceX rocket is on a collision course with the Moon


Showing that space junk isn't a local problem, observations by amateur astronomers have determined that the upper stage of a SpaceX Falcon 9 rocket launched in 2015 will impact the Moon on March 4 at 12:25 GMT.

A spacecraft impacting the Moon isn't new. In fact, the first probes to reach the lunar surface in the 1950s and '60s were deliberately designed to crash to either show the ability to reach the Moon or to gather data to plan for later soft robotic and crewed landings.
 
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