NASA

Artist's concept of the Dragon XL cargo spacecraft after separating from the Falcon Heavy rocket's second stage (Image courtesy SpaceX)

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NASA has announced that it has selected SpaceX as the first supplier in the Gateway Logistics Services contract to transport cargo, experiments and other supplies to the Lunar Gateway, part of the Artemis program that aims to bring astronauts back to the Moon. At least two missions will be carried out with the Dragon XL cargo spacecraft, a new variant of the Dragon 2 cargo optimized to carry over 5 metric tons of cargo to the Moon’s orbit. The timeline for these missions isn’t clear due to the NASA’s changes of plans, as recently the agency decided to skip the use of the Lunar Gateway for the mission that’s supposed to take place by 2024 and use it in the following years.

Uranus seen by Voyager 2 (Image NASA/JPL-Caltech)

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An article published in the journal “Geophysical Research Letters” reports the discovery of a plasmoid, a structure composed of plasma formed mainly of hydrogen in the midst of magnetic fields, in the magnetotail – the magnetosphere’s tail – of the planet Uranus that was moving away from it. The plasmoid’s formation isn’t a new event because Gina DiBraccio and Daniel J. Gershman of NASA’s Goddard Space Flight Center examined the observations made by the Voyager 2 space probe during the its Uranus flyby on January 24, 1986. It’s the first plasmoid discovered in the Uranus’ atmosphere and could be a crucial mechanism for its loss of atmosphere.

The Dragon cargo spacecraft blasting off for its CRS-20 mission atop a Falcon 9 rocket (Photo NASA)

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A few hours ago the SpaceX Dragon spacecraft blasted off atop a Falcon 9 rocket from Cape Canaveral in its CRS-20 (Cargo Resupply Service 20) mission, also referred to as SPX-20. After just over ten minutes it separated successfully from the rocket’s last stage and went en route. This is the 20th mission for the Dragon spacecraft to resupply the International Space Station with various cargoes and then return to Earth, again with various cargoes. It’s the last mission for this Dragon version, which will be replaced by Dragon 2 from the next mission.

Jupiter's equatorial region

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An article published in the journal “Nature Astronomy” reports a study on the abundance of water in the atmosphere and in particular in the equatorial region of the planet Jupiter. NASA’s Juno mission team used data collected by the space probe, which has been orbiting the gas giant for about 3.5 years. The conclusion is that water makes up about 0.25% of the molecules in Jupiter’s atmosphere, about three times those present in the Sun’s atmosphere estimated through the presence of its components. This is a result that indicates an abundance much higher than that measured in 1995 by the Galileo space probe.