2023-07-19 14:03:43
Musk: SpaceX will be the “first priority” to build an interstellar spacecraft. The space exploration company SpaceX successfully sent two astronauts to the International Space Station on the 30th of last month. SpaceX will focus on Starship. According to an internal SpaceX email obtained by CNBC, Musk asked employees to regard Starship as the company’s “number one priority” and would immediately speed up the development process. In addition to focusing on reducing the risk of returning the Dragon capsule, Starship will also be regarded as SpaceX’s primary development goal. SpaceX will now set the main goal of building Starship, a fully reusable rocket that can carry up to 100 people at a time for missions to the moon or Mars. Musk also asked SpaceX employees to devote a lot of time to the Starship development project in Texas to further accelerate the construction of the Starship. SpaceX has raised nearly $1.7 billion in funding since 2019 and is currently valued at $36 billion. If SpaceX can raise funds and successfully develop three projects at the same time, namely the Dragon spacecraft, the Starlink network satellite and the interstellar spacecraft, the future of SpaceX will be limitless. Starship Production Complex Boca Chica, Texas pic.twitter.com/pd4ka93bv5 — Elon Musk (@elonmusk) June 6, 2020

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#Musk #SpaceX #priority #build #interstellar #spacecraft #ScienceDaily

2023-07-19 06:00:10

The fall of Comet Shoemaker-Levy 9 at 44°S into Jupiter’s atmosphere in July 1994 produced new species in its stratosphere, i.e. above the cloud layer usually photographed in the visible . These species, such as carbon monoxide (Carbon is a chemical element of the family of crystallogens, symbol C,…) (CO) and cyanide (Cyanides are the compounds of the anion CN-, formed of a carbon atom bonded by…) hydrogen (Hydrogen is a chemical element with symbol H and atomic number 1.) (HCN) are very stable species over time in the atmosphere of Jupiter (The atmosphere of Jupiter is the most important of the atmospheres of the planets…), because they have a very long chemical lifespan.
Jupiter photographed by amateur astronomer Christopher Go on March 22, 2017, that is to say the day of the observations (Observation is the action of attentive monitoring of phenomena, without the will to…) ALMA. The bright areas indicate the emission of HCN, concentrated at the limb of the planet (A planet is a celestial body orbiting around the Sun or another star of…). An HCN hole is observed in the northern and southern auroral regions and at nearby latitudes. A small production region of very high altitude (Altitude is the vertical elevation of a place or an object with respect to a level…) is located inside the southern aurora.
© T. Cavalié and C. Go.

More than 20 years following the impacts of the comet, these species should therefore have contaminated all the latitudes and longitudes of the planet. The maps of the emission of these species with the ALMA (Atacama Large Millimeter/submillimeter Array) millimeter interferometer show, however, that while CO follows this trend, the same is not true for HCN. In the auroral zones and at neighboring latitudes, a research team (Scientific research designates in the first place all the actions undertaken with a view to…) observed a hole in HCN in the average (The average is a statistical measurement characterizing the elements of a set of…) stratosphere (The stratosphere is the second layer of the Earth’s atmosphere, located above the…), a sign that the species (In the life sciences, the species (from the Latin species, “type”…) is destroyed in these regions and at these altitudes.

Scientists believe that the organic aerosols that are produced in the auroras are responsible for this hole, by adsorbing HCN on their surface. Even more unexpectedly, the data (In information technology (IT), a datum is a basic description, often…) reveal an HCN production zone at very high altitudes and inside the Auroras of Jupiter. The energy (In the common sense, energy designates everything that makes it possible to carry out work, manufacture…) deposited by the magnetosphere (The magnetosphere is the region surrounding a celestial object in which the phenomena… ) in the auroras is a strong candidate to explain this highly localized production.

Reference

Cavalié, T., Rezac, L., Moreno, R. et al.Evidence for auroral influence on Jupiter’s nitrogen and oxygen chemistry revealed by ALMA.
Nat Astron (2023).
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