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Archive for the ‘satellites’ category: Page 67

Jan 4, 2022

Self‐healing crystal voids in double perovskite nanocrystal

Posted by in categories: mobile phones, robotics/AI, satellites, solar power, sustainability

From the Terminator to Spiderman’s suit, self-repairing robots and devices abound in sci-fi movies. In reality, though, wear and tear reduce the effectiveness of electronic devices until they need to be replaced. What is the cracked screen of your mobile phone healing itself overnight, or the solar panels providing energy to satellites continually repairing the damage caused by micro-meteorites?

Jan 2, 2022

SpaceX drone ship heads to sea for first 2022 Falcon launch

Posted by in categories: drones, internet, satellites

SpaceX drone ship Of Course I Still Love You (OCISLY) departed Port Canaveral on January 1st, heading to sea on the first day of the year for SpaceX’s first launch of 2022.

With a launch manifest that’s never been more jam-packed and seemingly achievable, it’s no surprise that SpaceX is wasting no time kicking off what could be its third record-breaking year in a row. Barring delays, drone ship ASOG will arrive about 640 km (400 mi) downrange at its recovery site – just northeast of the Bahamas – a day or two before Falcon 9’s first launch and landing attempt of the year. Known as Starlink 4–5 (Group 4 Launch 5) and scheduled to lift off no earlier than (NET) 4:49 pm EST (21:49 UTC), Thursday, January 6th, it will be SpaceX’s 34th dedicated Starlink launch since May 2019.

Perhaps more importantly, if the mission goes to plan and doesn’t have rideshare payloads, SpaceX will start 2022 having just launched its 1997th Starlink satellite, including two prototypes that came to be known as Tintin A and B and kicked off the constellation’s in-space hardware testing phase in February 2018. Excluding all prototypes, Starlink 4–5 will mark the launch of more than 1900 (1922) nominally operational Starlink satellites.

Dec 31, 2021

Elon Musk rejects claims about Starlink satellites crowding the space

Posted by in categories: Elon Musk, internet, satellites

In a recent interview, Elon Musk rejected the claims about Starlink satellites crowding the space.

Couple of days ago, China complained to the UN that their space station had two close encounters with Starlink satellites and for safety reasons they implemented preventive collision avoidance control. China’s complain stated that the first incident occurred on 1st July and the second one was on 21st October 2021.

For your information, Starlink is the satellite internet constellation started by Elon Musk’s SpaceX and it aims to provide low cost high speed broadband internet service in every corner of the world, especially in rural places where cell services are not that advance. Currently there are over 1200+ Starlink satellites in space.

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.

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