Category: space – Page 859
Space explosions
Posted in space
As the Earth moves through space, it is trailed by its own magnetic field. These magnetic field lines, or magnetotails, can sometimes get tangled—which can trigger an explosion. These bursts are only a fraction of a second long, but they can scatter millions of electrons at supersonic speeds. Learning about space explosions around Earth can also help us understand space explosions across the universe! Discover more: https://go.nasa.gov/2qVsrmt
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An uncrewed Russian cargo ship linked up with the International Space Station Sunday (Nov. 18) to deliver nearly 3 tons of supplies for the orbiting lab.
The resupply ship, called Progress 71, docked at the space station at 2:28 p.m. EST (1928 GMT) as both spacecraft sailed 252 miles (405 kilometers) over Algeria. Progress 71 launched into orbit Friday (Nov. 16) from Baikonur Cosmodrome in Kazakhstan.
“A textbook journey for the Progress,” NASA spokesperson Rob Navias said during live commentary. [The Space Station’s Robotic Cargo Ship Fleet in Pictures].
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MINNEAPOLIS (AP) — An astrophysicist from the University of Minnesota who has spent 14 winters in Antarctica tending to a telescope plans to step away from his research after the instrument is replaced.
Minnesota Public Radio reports that the university will begin the replacing the telescope and mount at the Amundsen-Scott South Pole Station this month.
University astrophysicist Robert Schwarz says he’ll stay through the replacement process but doesn’t plan to return. He’s overseen the telescope maintenance, trekking out in temperatures as low as minus 100 degrees Fahrenheit to check on the instrument.
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How To Make A PB&J Sandwich In Space
Posted in space
A tiny transparent worm could be the key to finding out how to stop the frailty and ill health which often comes with old age.
British scientists are sending tens of thousands of worms into space in a government backed project to see if two drugs can prevent or slow down muscle wasting brought on by microgravity.
In space, the 1mm long c-elegans worms have nothing to push against to maintain their muscle mass and so quickly start losing strength, mirroring the effect experienced by elderly people back on Earth or those with conditions like muscular dystrophy.
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What is absolute zero?
Posted in particle physics, space
The coldest place beyond Earth is artificial, too. Last summer, astronauts activated an experiment called the Cold Atom Lab aboard the International Space Station. The lab has attained temperatures 30 million times lower than empty space. “I’ve been working on this idea, off and on, for over 20 years,” says Robert Thompson of NASA’s Jet Propulsion Lab, one of the researchers who devised the experiment. “It feels incredible to witness it up and operating.”
What happens when matter gets that cold?
If Thompson sounds excited, it’s because ultra-cold atoms behave in fascinating and potentially useful ways. For one thing, they lose their individual identities, fusing to form a bizarre state of matter called a Bose-Einstein condensate.
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This week’s announcement? One of the closest stars to Earth has a super-Earth companion—Barnard’s star is a red dwarf that is only six light years from our Solar System. Only the three stars of the Centauri system are closer.
A large planet appears to be orbiting out near the system’s snow line.
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