Category Astronomy/Space

The Early Days of the Milky Way revealed

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The Early Days of the Milky Way revealed

A study puts a sequence to the events which gave rise to our Galaxy. The universe 13,000 million years ago was very different from the universe we know today. It is understood that stars were forming at a very rapid rate, forming the first dwarf galaxies, whose mergers gave rise to the more massive present-day galaxies, including our own. However the exact chain of the events which produced the Milky Way was not known until now.

Exact measurements of position, brightness and distance for around a million stars of our galaxy within 6,500 light years of the sun, obtained with the Gaia space telescope, have allowed a team from the IAC to reveal some of its early stages...

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Powering the Future with Lunar Soil

Moon base. Credit: European Space Agency

Building a lunar base would be one of the next logical steps in our exploration of the solar system, but the survival of a future crew depends on access to a reliable source of energy. An ESA Discovery & Preparation study explored how lunar regolith—the dust, soil and rock on the moon’s surface—could be used to store heat and provide electricity for future astronauts, rovers and landers.

Humans would have little difficulty reaching the moon’s surface with today’s technology, but it is expensive—sometimes even impossible—to take all the materials we would need with us, especially if we want to stay for more than a couple of days...

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Red Wine’s Resveratrol could help Mars Explorers stay strong

Terminal assessment of the muscles of the triceps surae, including soleus (A)and gastrocnemius wet mass (D), soleus (B) and gastrocnemius (E) average cross sectional area (CSA), and representative images of the soleus (C) and gastrocnemius (F) muscles stained with anti-collagen VI (red), anti-slow-skeletal myosin heavy chain (green), and DAPI (blue). N = 6 per group. The results are presented as mean ± SEM; the results of the post hoc tests following the ANOVA are indicated. *p < 0.05, ∗∗p < 0.01, and ∗∗∗p < 0.001 vs. PWB100, respectively. #p < 0.05, ###p < 0.001, and #⁢#⁢#⁢#p < 0.0001 vs. PWB100 + RSV, respectively. $p < 0.05, $$p < 0.01, and $$$p < 0.001 vs. PWB40, respectively.

Nutraceuticals that preserve muscle in reduced gravity will support long-term space mis...

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Gaia starts Mapping the Galactic Bar in the Milky Way

This colour chart, superimposed on an artistic representation of the galaxy, shows the distribution of 150 million stars in the Milky Way probed using data from the second release of ESA’s Gaia mission in combination with infrared and optical surveys, with orange/yellow hues indicating greater density of stars. Most of these stars are red giants. While the majority of charted stars are located closer to the Sun (the larger orange/yellow blob in the lower part of the image), a large and elongated feature populated by many stars is also visible in the central region of the galaxy: this is the first geometric indication of the galactic bar. Credit: ESA/Gaia/DPAC, A. Khalatyan (AIP) & StarHorse Team; mapa artístic de la Galaxia: NASA/JPL-Caltech/R. Hurt (SSC/Caltech)

The first direct ...

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