Alexander Hochguertel

Spaceflight to the lunar surface has been energised by the potential of the Artemis missions, which aim to use the Moon as a pit stop on a much bolder cause: crewed flights to Mars. First mooted by NASA in 2017, the Artemis programme wants to build a permanent base on the Moon that can act as a gateway to further-flung destinations. Modern aims require modern solutions. Aiming to land the first woman and next man on the Moon by 2025, here is how the engineering behind Artemis differs from the trailblazing efforts of the 20th century – and how, in some ways, it is surprisingly similar. #space #engineering #NASA #Moon

1

The Pleiades: Closest Star Cluster to Earth | Kitt Peak National Observatory Support FriendsofNASA.org | High-res image: https://lnkd.in/gru9AWu9 This image was obtained with the wide-field view of the Mosaic camera on the WIYN 0.9-meter telescope on Kitt Peak, Arizona. The Pleiades are an open cluster easily visible to the naked eye. The cluster is dominated by several hot, luminous and massive stars. The blue nebulosity surrounding the brightest stars are due to blue light from the stars scattering off of dust grains in the interstellar gas between us and the stars. The cluster is also known as the 'Seven Sisters'. The image was generated with observations in the B (blue), V (green), and I (red) filters. In this image, North is right, East is up. The Pleiades is located approximately 440 light-years away towards the constellation of Taurus (The Bull). The cluster’s central region spans about eight light-years, with the diameter of The Pleiades as a whole estimated at 43 light-years. The Pleiades is a very prominent sight to the unaided eye during winter in the Northern Hemisphere, while in summer the cluster is best seen by observers in southern latitudes. Most of the cluster’s members are very young, hot blue stars formed within the last 100 million years. So far, about 1,000 stars have been confirmed. The hint of bluish nebulosity around the brightest stars originates from a cloud of interstellar gas and dust that the cluster is passing through at the moment. The tiny particles of dust scatter the blue light from the nearest stars more favorably than other colors, so the region appears to twinkle in blue. The cluster contains many brown dwarfs, or failed stars. These objects, though more massive than planets, do not possess enough mass to ignite nuclear fusion reactions in their cores and burst into life as bright stars. Credit: NOIRLab/NSF/AURA/T.A. Rector (University of Alaska Anchorage), Richard Cool (University of Arizona) and WIYN Release Date: June 30, 2020 NSF NOIRLab National Science Foundation (NSF) Association of Universities for Research in Astronomy Dan Goldin NASA Goddard Space Flight Center University of Alaska Anchorage University of Arizona American Astronomical Society (AAS) Patrick CUVELIER Hartmut Schöne Jimmy Balimis Jocelyne Hericher #NASA #Space #Astronomy #Science #Stars #StarClusters #ThePleiades #SevenSisters #Messier45 #M45 #OpenStarCluster #BrownDwarfStars #Taurus #Constellation #Cosmos #Universe #WIYNTelescope #Optical #KittPeak #Tucson #Arizona #NOIRLab #AURA #NSF #UnitedStates #STEM #Education

57

1 Kommentar

The power of self-preservation! If you do not take the time, the body will take it for you! We all know the power of the body - it wins every time. We try to fight it, we try to be strong, we try to preserve. The irony is self-preservation. Boundaries. Stretching is not only about elongating the boundaries but also about respecting them. It is about preventing injury within oneself in the physical, mental, and emotional sense. Committing to this practice preserves your body and nurtures your mind and soul. I aim and achieve to hold a safe space for you and your journey. #InclusiveStretchWithEase #SafeSpace #YourJourney #InclusiveLifestyle #BeKind #BePresent #BeInclusive @nicolewithinclusive

1

Elliptical galaxies are a type of galaxy that looks like an elongated, flattened ball. They contain many stars, but they usually have less gas and dust compared to other types of galaxies, like spiral galaxies. Because of this, they don't form new stars as often. Elliptical galaxies can vary in size, from small ones with just a few million stars to giant ones with trillions of stars. They are often found in groups with other galaxies and are thought to have formed from the merging of smaller galaxies over time. Overall, elliptical galaxies are an important part of the universe and help us understand how galaxies evolve. https://lnkd.in/e9Jsx4vB #galaxyaerosgh #space #spaceexploration #SpaceNews

2

Ephesians 5:1 Follow God’s example, therefore, as dearly loved children #olivetreebible #bibleapp #dailywisdom #votd #verseoftheday #scriptureoftheday #bibleversedaily #biblequotes #bibleverseoftheday

4

Happiness: an #enduring state of mind consisting not only of feelings of joy, contentment, and other positive emotions, but also of a sense that one's life is meaningful and valued. What's an enduring state of mind? It's a long-term state of being that creates a sense of #fulfillment. Fulfillment is ultimately created through goals, consistent routine, and discipline. Creating a well thought out plan of what your personal and professional life looks like and creating #milestones, will catapult you in the direction you want to go. Evaluate your #habits and begin to change what you need in order to get the results you desire. 

1

https://buff.ly/4cgw4Iz The space around us is hardly empty – there are millions of asteroids orbiting the Sun along with the Earth and other planets in our solar system. But one day every year we come together to acknowledge these space rocks and the impact they often have on our home. That day is June 30, also known as Asteroid Day. As Asteroid Day approaches this year, so will an asteroid called 2011 UL21. UL21 is quite large, at almost 2.3 km in diameter, and falls into the category of Apollo asteroids. Named after the Greek god Apollo, who was known for his epic journeys, these asteroids come in a variety of sizes from a few meters to several kilometers across, like 2011 UL21 (nicknamed “Umbra Lumina”). More importantly, Apollo asteroids get up close and personal by crossing Earth’s orbit, although their orbits around the Sun are larger than Earth’s. This is in direct contrast to their more distant cousins, the Amor asteroids, which flirt with Earth’s orbit but never quite intersect it, or the Atira group, which never venture outside Earth’s orbit at all and prefer to stay closer to the Sun. Aten asteroids do also cross Earth’s path, albeit with smaller orbits than the Apollos. Apollo asteroids are part of a group called Near-Earth Objects, or NEAs. Scientists keep a close eye on NEAS to make sure they’re not about to crash into our planetary party, and an even closer gaze on a subset of NEASs called Potentially Hazardous Asteroids that fly quite close to our home. Although Umbra Lumina is classified as a PHA, there is no need to fret. Although Umbra Lumina will make its close approach on June 27 – just in time for asteroid day – it will still be 6.6 million km away (4.1 million miles). That’s 17 times the distance from the Earth to the Moon! This rocky body won’t come this close for another 65 years, so catch a glimpse at it now! During its approach and in the subsequent weeks, it should reach 11th magnitude, which is bright enough to gather data with a Unistellar telescope. Scientists need your help to study Umbra Lumina in more detail. While we know that this asteroid takes 1129 days to orbit the Sun, there is disagreement on how long it takes to rotate on its axis, a characteristic known as its rotation period. Some studies have deduced a rotation period of 2.7 hours, while others report that it takes 1.5 hours to spin. Only with your observations during this flyby can astronomers get the necessary data they need to settle the score and find out how this rock flies through space. Have a Unistellar telescope and want to help? Follow the instructions at the link below.

19

[James Webb Space Telescope Discovers Some Early Universe Galaxies Grew Up Surprisingly Fast] Using the James Webb Space Telescope, scientists have discovered that early universe galaxies must have grown up way faster than expected. Plus, the same team also found that, 10 billion years ago, the cosmos wasn't quite as disordered and chaotic as previously believed. The international team, led by researchers from Durham University in the U.K., reached these conclusions by discovering evidence of structures called "star bars" forming in galaxies that existed just a few billion years after the Big Bang. Star bars are elongated regions of increased star density found at the hearts of spiral galaxies like the Milky Way and other disk galaxies. As they form, star bars push gas toward the hearts of their respective galaxies, thereby regulating star birth. The presence of these central bar structures thus indicate that a galaxy has entered a more settled and "mature phase." This isn't the first time scientists have gone bar-hopping in the early history of the 13.8 billion-year history of the universe. The Hubble space telescope witnessed these features as well, but that orbiting eye on the universe could only go as far back as 8 billion to 9 billion years. The increased sensitivity and wavelength range of the JWST, however, has stretched such observations back at least another 1 billion years. This has revealed bar formation in galaxies that are seen as they were between 8 billion and 11.5 billion years ago. In fact, of 368 disk galaxies the team considered for the study, 20% already had bars. The further back in time the team looked with the JWST, the fewer bar structures they observed in galaxies. They believe this could be because galaxies at earlier stages of the universe were not as well formed. An alternative may be that shorter bars were more common in progressively earlier galaxies. Even the impressive observational power of the JWST isn't sufficient to see these short bars in early galaxies. With these results in hand, the team now wants to use the JWST to peer even further back into cosmic time, looking back as far as 12.2 billion years ago. This could reveal whether bar growth was common just 1.6 billion years after the Big Bang. "The simulations of the universe now need to be scrutinized to see if we get the same results as the observations we’ve made with the JWST," Gadotti concluded. "We have to think outside of what we thought we knew." Source: https://lnkd.in/eUJu7Ug5 #galaxyaerosgh #space #spaceexploration #spacenews  

2