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– TechCrunch


Elon Musk has shared some details about future testing of Starship, the SpaceX launch vehicle currently being developed by the company at its Boca Chica, Texas facility. Recently, SpaceX has completed short, 150 meter (just under 500 feet) test flights of two earlier Starship prototypes, SN5 and SN6 – and SN8, which is currently set to be done construction “in about a week” according to Musk will have “flaps & nosecone” and ultimately is intended for a much higher altitude test launch.

The prototypes that SpaceX has flown and landed for its so-called ‘short-hop’ tests over the past few weeks have been full-sized, but with a simulated weight installed on the top in place of the actual domed nosecone that will perch atop the final production Starship and protect any cargo on board. SN5 and SN6, which are often compared to grain silos, are also lacking the large control flaps on either side of the nosecone that will help control its flight. SN8 will have both, according to Musk.

This version of the prototype will also undergo the same early testing and its precursors, including a static fire and other ground checkouts, followed by another static fire before ultimately attempting to fly to an altitude of 60,000 feet – and then returning back to the ground for a controlled landing.

Episode 3: Time Machines – Hubble has looked back billions of years in time to see some of the earliest galaxies in their infancy, and it has fundamentally changed what we know about the universe itself. Find out from Nobel Laureate John Mather and Hubble Senior Project Scientist Jennifer Wiseman how Hubble will work with the future James Webb Space Telescope to revolutionize our understanding of the universe even further.

Watch Episode 1: Driving the Hubble Space Telescope.

In the book of Genesis, the Bible recounts the Babel tower that, once built, would allow humanity to do whatever it wishes. In this video, I will go over how humanity’s first space elevator will revolutionize human progress in space exploration and colonization. I will also go over the risks of a possible space elevator.

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Our planet vibrates incessantly, sometimes with notable but more often with imperceptible intensity. Conventional seismology attempts to decipher vibrational sources and path effects by studying seismograms—records of vibrations measured with seismometers. In doing so, scientists seek either to understand the tectonic processes that lead to strong ground motions and earthquake failure (1) or to probe otherwise inaccessible planetary interiors (2). Progress in these areas of research typically has relied on the rare and geographically irregular occurrence of large earthquakes. However, anthropogenic (human) activities at Earth’s surface also generate seismic waves that instruments can detect over great distances. On page 1338 of this issue, Lecocq et al. (3) report on a quieting of anthropogenic vibrations since the start of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic.

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