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Archive for the ‘satellites’ category: Page 80

Dec 31, 2021

China complains of near-collisions with SpaceX satellites

Posted by in categories: geopolitics, satellites, treaties

All parties to Outer Space Treaty must remember pledge to act responsibly, China tells UN secretary general in diplomatic note.

Dec 29, 2021

A Chinese Satellite Can Allegedly Take High-Res Images of US Cities In Seconds

Posted by in categories: engineering, military, satellites

While rotating at up to 10 degrees per second!

The technological competition between the United States and China is growing at breakneck speeds.

Continue reading “A Chinese Satellite Can Allegedly Take High-Res Images of US Cities In Seconds” »

Dec 29, 2021

China asks US to stop Elon Musk’s satellites approaching its space station

Posted by in categories: Elon Musk, internet, satellites

Starlink satellites have twice approached Tiangong in orbit, prompting avoidance manoeuvres, although SpaceX says the satellites are built to avoid collisions.

Dec 29, 2021

China cries foul after space station dodges Elon Musk satellites

Posted by in categories: Elon Musk, law, satellites

Celestial tensions mount with U.S. as both sides aim for supremacy.


PALO ALTO, U.S. — China on Tuesday accused the U.S. of ignoring international space law and urged Washington to act responsibly after two near-collisions this year between Beijing’s new orbiting station and satellites launched by Elon Musk’s exploration company SpaceX.

Dec 28, 2021

Scientists demonstrate a novel rocket for deep-space exploration

Posted by in categories: energy, satellites

The growing interest in deep-space exploration has sparked the need for powerful long-lived rocket systems to drive spacecraft through the cosmos. Scientists at the U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL) have now developed a tiny modified version of a plasma-based propulsion system called a Hall thruster that both increases the lifetime of the rocket and produces high power.

The miniaturized system powered by plasma—the state of matter composed of free-floating electrons and , or ions—measures little more than an inch in diameter and eliminates the walls around the plasma propellent to create innovative thruster configurations. Among these innovations are the cylindrical Hall thruster, first proposed and studied at PPPL, and a fully wall-less Hall thruster. Both configurations reduce channel erosion caused by plasma-wall interactions that limit the thruster lifetime—a key problem for conventional annular, or ring-shaped, Hall thrusters and especially for miniaturized low-power thrusters for applications on small satellites.

Dec 28, 2021

Elon Musk Faces Backlash In China After ‘Close Encounters’ Between His Starlink Satellites And Chinese Space Station

Posted by in categories: Elon Musk, health, internet, satellites

Billionaire Elon Musk is facing criticism in China after the country recently complained that its budding space station, which is still in construction, had two “close encounters” with satellites launched by SpaceX’s Starlink program earlier this year. The Chinese space station was twice forced to take evasive action in order to avoid collision with satellites launched by Musk’s rocket company SpaceX, according to a document submitted by China to the United Nations Office for Outer Space Affairs earlier this month.

Though the claims have not been independently verified and SpaceX is yet to respond, China alleges that its space station had to implement “preventive collision avoidance control” both on July 1 and October 21 when faced with oncoming Starlink satellites.

According to the document, China informed the U.N. Secretary-General that the close encounters with Starlink satellites “constituted dangers to the life or health of astronauts aboard the China Space Station.”

Dec 27, 2021

Elon Musk, SpaceX face online backlash in China after space station near-misses

Posted by in categories: Elon Musk, satellites

Musk and SpaceX faced online backlash in China after a note sent to the UN revealed the company’s satellites almost collided with China’s space station in 2021.

Dec 22, 2021

SpaceX lands 100th Falcon booster

Posted by in categories: materials, satellites

Exactly six years after its first successful recovery, SpaceX has landed a Falcon booster for the 100th time.

On December 21st, 2015, the first Falcon 9 V1.2 Full Thrust (Block 1) rocket lifted off from SpaceX’s Cape Canaveral LC-40 launch pad on the company’s return-to-flight mission after a catastrophic in-flight failure just six months prior. Unwilling as ever to waste an opportunity, no matter how important the mission, SpaceX – on top of debuting a major Falcon 9 upgrade – chose to take advantage of the return to flight to attempt to land a Falcon booster back on land for the first time ever. Ultimately, on top of successfully deploying multiple Orbcomm OG2 communications satellites in orbit for a paying customer, Falcon 9 booster B1019 sailed through its boostback, reentry, and landing burns without issue. About nine minutes after liftoff, the rocket ultimately touched down on a concrete “landing zone” just a few miles from where it lifted off with uncanny ease relative to SpaceX’s numerous failed attempts in the ~18 months prior.

Exactly six years later, on December 21st, 2021, Falcon 9 booster B1069 lifted off from Kennedy Space Center (KSC) Pad 39A with an upgraded, flight-proven Cargo Dragon in tow for SpaceX’s 24th International Space Station (ISS) resupply mission. CRS-24 also marked the company’s 31st and final launch of 2021, representing more successful Falcon launches completed in a single year than SpaceX had even attempted in its entire nine-year history up to the point of that first successful booster landing.

Dec 19, 2021

Space Mining Is Here, Led by This Tiny Country

Posted by in categories: business, satellites

With a decades-long track record of making space a profitable business, Luxembourg is betting big on everything from space resources, satellites and training the next generation of space entrepreneurs.

Dec 18, 2021

US Space Force awards $67M deal to Raytheon to test prototype weather satellite

Posted by in categories: climatology, satellites

The new prototype is part of a program designed to replace the aging Defense Meteorological Satellite Program satellites on orbit.

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