from the world's big
Elon Musk's SpaceX approved to launch 7,518 Starlink satellites into orbit
SpaceX plans to launch about 12,000 internet-providing satellites into orbit over the next six years.
- SpaceX plans to launch 1,600 satellites over the next few years, and to complete its full network over the next six.
- Blanketing the globe with wireless internet-providing satellites could have big implications for financial institutions and people in rural areas.
- Some are concerned about the proliferation of space debris in Earth's orbit.
The Federal Communications Commissions has approved the last key request of SpaceX's plan to provide the globe with wireless internet beamed from thousands of satellites, a project known as Starlink.
On Thursday, the FCC said the private aerospace company can launch an additional 7,518 satellites into orbit, bringing the total number of approved satellites to about 12,000. The commission first approved the launch of 4,400 Starlink satellites in March following the company's successful deployment of two test satellites. SpaceX plans to launch the first 1,600 satellites within the next few years, and to launch a full network of internet-providing satellites over the next six.
SpaceX CEO Elon Musk said the goal is to create a new kind of global communications system.
"This is quite an ambitious effort," Musk said in 2016. "We're really talking about something which is, in the long term, like rebuilding the internet in space."
Low Earth orbit
Internet-providing satellites have been around for years, as I wrote in an article on the Starlink project from April. However, they're typically expensive and provide slower service than land-based internet infrastructure. This is mainly because it takes a relatively long time for a signal to travel from the satellite to the host. SpaceX plans to solve this problem by launching satellites into low Earth orbit–just hundreds of miles up, in order to reduce the "latency," or time it takes for the signal to travel.
However, the problem with this low-orbit solution is that it reduces the amount of surface area to which each satellite is able to provide service. That means SpaceX will need lots of satellites if it wants to cover the globe with wireless service. To accomplish this, SpaceX plans to launch about one-third of its 12,000 satellites into low Earth orbit, about 680 miles above ground, and the remainder into very-low Earth orbit, about 210 miles up. The satellites would communicate in a peer-to-peer system, using a combination of lasers and radio waves.
The implications of a faster connection
In addition to providing internet access to rural areas and other places where infrastructure is lacking, one institution stands to gain tremendously from the Starlink network: banks.
In the financial practice known as high-frequency trading, shaving mere microseconds off of latency can give traders an extraordinarily lucrative advantage in the market. Financial institutions would likely shell out billions for dedicated service, which would help SpaceX maintain its costly constellation of satellites.
The dangers of space debris
Some are concerned about the proliferation of space debris in Earth's orbit, including NASA administrator Jim Bridenstine.
It's encouraging to see the House moving quickly in support of Space Policy Directive 3. Reducing the growing orbit… https://t.co/LQWyfvyPfA— Jim Bridenstine (@Jim Bridenstine)1529957436.0
The U.S. military already tracks more than 500,000 pieces of space junk flying around the planet at lethal speeds.
"My favorite example is an innocuous little screwdriver that slipped through an astronaut's grasp and has been circling low Earth orbit at up to 21,600 miles per hour for the last 35 years," said FCC Commissioner Jessica Rosenworcel. "At these speeds, even a common household item can wreak havoc."
On Thursday, the FCC published a proposal designed to limit the amount of space debris brought into orbit by the satellite industry. The commission also signed off on plans for three other companies to launch internet-providing satellites into orbit: Kepler, Telesat and Leosat, all of which are competing with SpaceX to build the world's dominant satellite internet network.
Why space junk is more lethal than a bullet
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Construction of the $500 billion dollar tech city-state of the future is moving ahead.
- The futuristic megacity Neom is being built in Saudi Arabia.
- The city will be fully automated, leading in health, education and quality of life.
- It will feature an artificial moon, cloud seeding, robotic gladiators and flying taxis.
The Red Sea area where Neom will be built:
Saudi Arabia Plans Futuristic City, "Neom" (Full Promotional Video)<span style="display:block;position:relative;padding-top:56.25%;" class="rm-shortcode" data-rm-shortcode-id="c646d528d230c1bf66c75422bc4ccf6f"><iframe type="lazy-iframe" data-runner-src="https://www.youtube.com/embed/N53DzL3_BHA?rel=0" width="100%" height="auto" frameborder="0" scrolling="no" style="position:absolute;top:0;left:0;width:100%;height:100%;"></iframe></span>
Are we genetically inclined for superstition or just fearful of the truth?
- From secret societies to faked moon landings, one thing that humanity seems to have an endless supply of is conspiracy theories. In this compilation, physicist Michio Kaku, science communicator Bill Nye, psychologist Sarah Rose Cavanagh, skeptic Michael Shermer, and actor and playwright John Cameron Mitchell consider the nature of truth and why some groups believe the things they do.
- "I think there's a gene for superstition, a gene for hearsay, a gene for magic, a gene for magical thinking," argues Kaku. The theoretical physicist says that science goes against "natural thinking," and that the superstition gene persists because, one out of ten times, it actually worked and saved us.
- Other theories shared include the idea of cognitive dissonance, the dangerous power of fear to inhibit critical thinking, and Hollywood's romanticization of conspiracies. Because conspiracy theories are so diverse and multifaceted, combating them has not been an easy task for science.
A growing body of research suggests COVID-19 can cause serious neurological problems.
- The new study seeks to track the health of 50,000 people who have tested positive for COVID-19.
- The study aims to explore whether the disease causes cognitive impairment and other conditions.
- Recent research suggests that COVID-19 can, directly or indirectly, cause brain dysfunction, strokes, nerve damage and other neurological problems.
Brain images of a patient with acute demyelinating encephalomyelitis.
COVID-19 and the brain<p>A growing body of research reveals alarming neurological complications among COVID-19 patients. On Wednesday, for example, researchers from University College London published a <a href="https://academic.oup.com/brain/article/doi/10.1093/brain/awaa240/5868408" target="_blank">study</a> in the journal Brain that describes how some patients have suffered temporary brain dysfunction, strokes, nerve damage, and other neurological problems concurrent with COVID-19.</p><p>Some patients suffered brain inflammation as a result of a rare disease called acute disseminated encephalomyelitis, which can cause numbness, seizures, and confusion. One patient in the study even hallucinated monkeys and lions in her home.</p>
Photo by Mario Tama/Getty Images<p>A separate study published in the <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7198407/" target="_blank">Journal of Clinical Neuroscience</a> notes that some COVID-19 patients have also suffered neurological complications like impaired consciousness and acute cerebrovascular disease. The study notes that past viruses like MERS and SARS also seemed to cause neurological problems.</p><p>A troubling finding among this growing body of research is that some patients seem to suffer neurological damage even when respiratory symptoms aren't obvious. Additionally, scientists aren't sure whether damage from the disease will be permanent.</p><p style="margin-left: 20px;">"Given that the disease has only been around for a matter of months, we might not yet know what long-term damage COVID-19 can cause," Dr. Ross Paterson, joint first author of the University College London study, said in a <a href="https://www.eurekalert.org/pub_releases/2020-07/ucl-iid070620.php" target="_blank">press release</a>. "Doctors needs to be aware of possible neurological effects, as early diagnosis can improve patient outcomes."</p><p>If you've been diagnosed with COVID-19 and want to enroll in the study, visit <a href="https://www.cambridgebrainsciences.com/studies/covid-brain-study" target="_blank">cambridgebrainsciences.com/studies/covid-brain-study</a>.</p>
Coronavirus layoffs are a glimpse into our automated future. We need to build better education opportunities now so Americans can find work in the economy of tomorrow.