Wednesday, September 7, 2022

Astronauts' blood shows signs of DNA mutations due to spaceflight

Created for znamenski.spacecom@blogger.com |  Web Version
September 7, 2022
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The Launchpad
James Webb Space Telescope spots planet shrouded in weird sand-filled clouds
(NASA/JPL-Caltech)
The James Webb Space Telescope has found a strange alien world shrouded in clouds of sand-like silicate grains.

The exoplanet discovery, described in a new paper as the first detection of its kind, was made by the James Webb Space Telescope's NIRSpec and MIRI instruments. In the data, astronomers spotted evidence of silicate-rich clouds around a brown dwarf nearly 20 times the size of Jupiter. The finding confirms some earlier theories about these odd planet-like worlds.
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Astronauts' blood shows signs of DNA mutations due to spaceflight
(Bettmann/Getty Images)
stronaut cancer risk needs careful monitoring, concludes a study that stored spaceflyer blood for 20 years.

All fourteen astronauts in the study, from NASA's space shuttle program, had DNA mutations in blood-forming stem cells.
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After 45 years, the 5-billion-year legacy of Voyager 2 is just beginning
(NASA/JPL-Caltech)
On Aug. 20, 1977, 45 years ago, an extraordinary spacecraft left this planet on a journey like no other. Voyager 2 was going to show us, for the first time, what the outer solar system planets looked like close-up. It was like sending a fly to New York City and asking it to report back.
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Space Deals
Save $1,000 on the Unistellar eQuinox computerized telescope
(Unistellar)
Now is definitely the time to save big on a highly sophisticated computerized telescope as the Unistellar eQuinox is now $1000 off on their website. The deal ends Sept. 30.
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Enter the virtual world with the HP Reverb G2 VR headset, now $200 off
(HP Development Company, L.P.)
The HP Reverb G2 is just $399 thanks to this huge discount but hurry, this Labor day deal ends soon.
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Skywatching
Saturn and a bright moon share the sky tonight!
(Starry Night Software)
he bright moon passes by Saturn tonight, coinciding with the moon's closest approach to Earth.

Currently in a waxing gibbous phase, the moon will appear near Saturn on the evenings of September 7th and 8th. However, while Saturn currently shines brightly at a +0.4 magnitude, the moon's glow may make it difficult to spot the ringed planet — especially as the moon reaches perigee.
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Science & Astronomy
Astronomers spot 2 intriguing alien worlds around ultracool star
(Mark Garlick/Science Photo Library via Getty Images)
The newly discovered planets orbit an ultracool dwarf star and one is in the habitable zone, making it a prime target for further investigation. Here's what we know.
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2nd huge eruption from the sun hammers Venus
(NASA/STEREO)
Earth's sister planet Venus is experiencing a bout of extreme space weather this week after a giant sunspot, not visible from Earth, expelled an enormous plasma burst toward the scorching-hot planet.
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Spaceflight
NASA to replace seal on leaky Artemis 1 moon rocket at the launch pad
(Joe Raedle/Getty Images)
NASA's Artemis 1 moon rocket is staying at the launch pad, at least for now.

Artemis 1 will use NASA's new Space Launch System (SLS) megarocket to send an uncrewed Orion capsule to lunar orbit and back. NASA attempted to launch the epic mission on Saturday (Sept. 3) but stood down when it couldn't troubleshoot a leak of supercold liquid hydrogen (LH2) propellant in time for liftoff.
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A month on 'Mars': Living on the EDGES
(Jason Soo Hoo)
Devon Island is one of the most radio-quiet places in the northern hemisphere, a perfect place for the Haughton-Mars Project to conduct the EDGES experiment. Here's how it works.
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Technology
US launches unarmed ballistic missile from Vandenberg Space Force Base
(U.S. Air Force/Airman 1st Class Ryan Quijas)
The U.S. Air Force conducted an early-morning suborbital test of an unarmed Minuteman III intercontinental ballistic missile, or ICBM, on Wednesday (Sept. 7).

This nighttime photo of the launch is just stunning.
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