We’ve received a strange signal from across the galaxy, and astronomers are struggling to understand what it means.
They know what’s emitting the signals. It’s a neutron star named ASKAP J193505.1+214841.0 (ASKAP J1935+2148 for short), located in the plane of the Milky Way, some 15,820 light-years from Earth.
But the signals themselves are like none we’ve ever seen before. The star goes through periods of strong pulses, periods of weak pulses, and periods of no pulses at all.
Images from the JunoCam visible-light camera aboard NASA’s Juno spacecraft supports the theory that the icy crust at the north and south poles of Jupiter’s moon Europa is not where it used to be. Another high-resolution picture of the icy moon, by the spacecraft’s Stellar Reference Unit (SRU), reveals signs of possible plume activity and an area of ice shell disruption where brine may have recently bubbled to the surface.
The JunoCam results recently appeared in the Planetary Science Journal and the SRU results in the journal JGR Planets.
On Sept. 29, 2022, Juno made its closest flyby of Europa, coming within 220 miles (355 kilometers) of the moon’s frozen surface. The four pictures taken by JunoCam and one by the SRU are the first high-resolution images of Europa since Galileo’s last flyby in 2000.
Vortices are a common physical phenomenon. You find them in the structure of galaxies, tornadoes and hurricanes, as well as in a cup of tea, or water as it drains from the bathtub.
Most collapsed stars fully rotate in seconds. This one takes almost an hour.
Australian scientists from the University of Sydney and Australia’s national science agency, CSIRO, have detected what is likely a neutron star spinning slower than any other ever measured.
No other radio-emitting neutron star, out of the more than 3,000 discovered so far, has been discovered rotating so slowly. The results are published today (June 5) in Nature Astronomy.
The technology could prove invaluable to Australia’s emergency response teams. #9News
The Aussie researchers say the new space-based tech can spot growing blazes by smoke.
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Go to https://hensonshaving.com/isaacarthur and enter “isaacarthur” at checkout to get 100 free blades with your purchase. Ganymede is an enormous moon, larger than any other we’ve found, including our own, and may one day be the centerpiece of wider human settlements around Jupiter. Visit our Website: http://www.isaacarthur.net Join Nebula: https://go.nebula.tv/isaacarthur Support us on Patreon: / isaacarthur Support us on Subscribestar: https://www.subscribestar.com/isaac-a… Group:
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/ discord Credits: Colonizing Ganymede Episode 449; May 30, 2024 Written, Produced & Narrated by: Isaac Arthur Graphics: Jeremy Jozwik Kristijan Tavcar Rapid Thrash Sergio Botero YD Visual Music Courtesy of Epidemic Sound Epidemic Sound http://epidemicsound.com/creator Stellardrone, “Ultra Deep Field”, “Red Giant”, “Billions and Billions”, “Cosmic Sunrise” Lombus, “Hydrogen Sonata”, “Cosmic Soup”
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NASA’s Mars Reconnaissance Orbiter (MRO) has discovered another intriguing formation on the planet’s barren surface.
As spotted by Universe Today, the spacecraft captured this image of a satisfyingly circular pit — and what its dark, yawning entrance leads to remains a question high on the minds of Mars scientists.
The image, “acquired to determine if any underlying void … and associated faults” were in the region, was taken with the High-Resolution Imaging Science Experiment (HiRISE) camera, a powerful lens capable of detailing the Martian surface in both visible and near-infrared light.
The most powerful active volcanoes known to exist, on Jupiter’s moon Io, have been photographed in exceptional detail by Large Binocular Telescope in Arizona.
