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Archive for the ‘satellites’ category: Page 45

Mar 13, 2023

Starlink faces competition, OneWeb one launch away from global internet

Posted by in categories: biotech/medical, Elon Musk, finance, internet, satellites

The firm faced financial collapse during the pandemic but is now serving customers in 15 countries.

U.K.-based OneWeb is one launch away from having enough satellites in orbit to cover the entire expanse of the Earth. Once ready, Elon Musk’s Starlink won’t be the only company offering such as service, the BBC

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Mar 13, 2023

In defense of space colonies and mining the high frontier

Posted by in categories: energy, finance, internet, satellites, sustainability

Exploiting the natural and energy resources of the moon and asteroids can spark a space-based industrial revolution that could be a boon to all humankind. Pure science alone will be enough reason for the people who pay the bills to finance space exploration. Accessing the wealth that exists beyond the Earth is more than enough incentive for both public and private investment. Science will benefit. Someone will have to prospect for natural and energy resources in space and to develop safe and sustainable ways to exploit it.

Conflict between scientists and commercial space is already happening. Astronomers complain that SpaceX’s Starlink satellite internet constellation is ruining ground-based observation. Some critics fear that commercial exploitation of the moon’s resources will impede the operation of telescopes on the far side of the moon.

Mar 11, 2023

Elon Musk, SpaceX, Car Racing, & History of Space — Jim Cantrell — 166 — Learning with Lowell

Posted by in categories: Elon Musk, robotics/AI, satellites

Jim Cantrell is an entrepreneur, strategist, subject matter expert in satellite systems, space system markets and road racer. Founder of StratSpace, Founder of Vintage Exotics Competition Engineering, early partner and VP at SpaceX.

Links.
https://en.wikipedia.org/wiki/Jim_Cantrell.
https://twitter.com/jamesncantrell?lang=en.
https://www.goodreads.com/author/show/18894007.Jim_Cantrell.
http://www.jimcantrell.com/book (new book)

Continue reading “Elon Musk, SpaceX, Car Racing, & History of Space — Jim Cantrell — 166 — Learning with Lowell” »

Mar 10, 2023

New High-Speed Propulsion System Paves Way for Hypersonic Flight up to Mach 16

Posted by in categories: engineering, satellites

We humans have a wonderful ability to keep developing, innovating, and engineering bigger, better, and faster contraptions. Close to Earth, we’ve been soaring through the skies in airplanes since 1903 thanks to the Wright brothers, and we’ve been launching spacecraft into space since 1957 when the Soviet Union rocketed the Sputnik satellite above our heads.

The team discovered a way of stabilizing detonation for hypersonic propulsion by creating a hypersonic reaction chamber for jet propulsions.

Mar 7, 2023

Hubble’s orbit has fallen by 333 miles since 1990, affecting its images

Posted by in categories: internet, satellites

So low that Starlink satellites have started photobombing its images.

Starlink and other broadband satellite constellations will threaten astronomical viewing in the upcoming years. Today, a team of astronomers has demonstrated that the satellite issue can’t be solved even by the Hubble Space Telescope.

Today, a team of astronomers has demonstrated that the satellite issue can’t be solved even by the Hubble Space Telescope.

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Mar 7, 2023

SPACE FORCE: The Secret Orbit — Arms Race in Space | SpaceTime — WELT Documentary

Posted by in categories: military, satellites

In December 2019, the United States established its new space force: the United States Space Force. A logical step in a globalized and digitized world whose infrastructure depends on satellites in space. This infrastructure is under threat. Also by a resurgence of conflict between East and West. This episode of Spacetime describes how the military conquered space and why the world is in a new arms race in Earth orbit.

#documentary #spacetime #usa.

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Mar 5, 2023

NASA captures sequestered carbon of 9.9 billion trees with deep-learning and satellite images

Posted by in categories: information science, robotics/AI, satellites

A NASA-led research team used satellite imagery and artificial intelligence methods to map billions of discrete tree crowns down to a 50-cm scale. The images encompassed a large swath of arid northern Africa, from the Atlantic to the Red Sea. Allometric equations based on previous tree sampling allowed the researchers to convert imagery into estimates of tree wood, foliage, root size, and carbon sequestration.

The new NASA estimation, published in the journal Nature, was surprisingly low. While the typical estimation of a region’s might rely on counting small areas and extrapolating results upwards, the NASA demonstrated technique only counts the trees that are actually there, down to the individual tree. Jules Bayala and Meine van Noordwijk published a News & Views article in the same journal commenting on the NASA team’s work.

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Mar 4, 2023

NASA Satellites Make Groundbreaking Discovery of Water on the Moon

Posted by in category: satellites

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Mar 4, 2023

NeRF in the Dark: High Dynamic Range View Synthesis from Noisy Raw Images

Posted by in categories: information science, mapping, mobile phones, satellites

ALGORITHMS TURN PHOTO SHAPSHOTS INTO 3D VIDEO AND OR IMMERSIVE SPACE. This has been termed “Neural Radiance Fields.” Now Google Maps wants to turn Google Maps into a gigantic 3D space. Three videos below demonstrate the method. 1) A simple demonstration, 2) Google’s immersive maps, and 3) Using this principle to make dark, grainy photographs clear and immersive.

This technique is different from “time of flight” cameras which make a 3D snapshot based on the time light takes to travel to and from objects, but combined with this technology, and with a constellation of microsatellites as large as cell phones, a new version of “Google Earth” with live, continual imaging of the whole planet could eventually be envisioned.

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Mar 1, 2023

TESS — Transiting Exoplanet Survey Satellite

Posted by in category: satellites

NASA’s Transiting Exoplanet Survey Satellite is an all-sky survey mission that will discover thousands of exoplanets around nearby bright stars. TESS launched April 18, 2018 aboard a SpaceX Falcon 9 rocket.

- and Yes TESS found a second exoplanet like Earth over 60 million light years away. A link about it is in this one.

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