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The year 2023 proved to be an important one for space missions, with NASA’s OSIRIS-REx mission https://www.pbs.org/newshour/science/watch-live-ancient-aste…JBNopD%24″ rel=“nofollow”> returning a sample from an asteroid and India’s Chandrayaan-3 mission https://www.space.com/chandrayaan-3-moon-temperature-lunar-s…sYef5A%24″ rel=“nofollow”> exploring the lunar south pole, and 2024 is shaping up to be another exciting year for space exploration.

Several new missions under NASA’s https://www.nasa.gov/specials/artemis/__;!!LsXw!R0aklfNlteeO…SEcWZi%24″ rel=“nofollow”> Artemis plan and https://www.nasa.gov/commercial-lunar-payload-services/__;!!…V7gEoS%24″ rel=“nofollow”> Commercial Lunar Payload Services initiative will target the Moon.

The latter half of the year will feature several exciting launches, with the launch of the Martian Moons eXploration mission in September, Europa Clipper and Hera in October and Artemis II and VIPER to the Moon in November—if everything goes as planned.

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In the grandeur of the universe, the tapestry of life may be woven from stranger threads than we ever dared to dream, and spun from materials far different to our own.\
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Credits:\
Silicon-Based Lifeforms \
Episode 426; December 21, 2023\
Produced, Written \& Narrated by: Isaac Arthur\
Graphics: Ken York / YD Visual\
Music Courtesy of Epidemic Sound http://epidemicsound.com/creator

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Spontaneous behavior in different individuals can be decomposed and understood using a relatively small number of neurobehavioral modules—the compositional modes—and elucidate a compositional neural basis of behavior.\

This video is part of the SNAC seminar series organized by Mac Shine, Joe Lizier, Ben Fulcher, and Eli Muller (The University of Sydney).

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Using China’s Five-hundred-meter Aperture Spherical radio Telescope (FAST), astronomers have discovered three new pulsars in an old Galactic globular cluster known as Messier 15. Two of them turned out to be long-period pulsars, while the remaining one spins so rapidly that it was classified as a millisecond pulsar. The finding was reported in a paper published Dec. 11 on the pre-print server arXiv.

Pulsars are highly magnetized, rotating emitting a beam of electromagnetic radiation. The most rapidly rotating pulsars, with rotation periods below 30 milliseconds, are known as (MSPs). Astronomers assume that they are formed in binary systems when the initially more massive component turns into a neutron star that is then spun up due to accretion of matter from the secondary star.

Located some 35,700 light years away from the Earth, Messier 15 (also known as NGC 7078) is a core-collapsed GC with a radius of about 88 and an estimated mass of 560,000 . It is one of the oldest (about 12 billion years old) and most metal-poor Galactic GCs (with a metallicity of approximately −2.25), and one of the most densely packed GCs in our galaxy.

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