SpaceX Starlink Satellite
Nearly Collides with European Satellite (Source: CNET)
The European Space Agency said Monday that it had to fire the thrusters
on its Aeolus satellite to avoid colliding with a satellite in the
SpaceX Starlink constellation. "Experts in our Space Debris team
calculated the risk of collision between these two active satellites,
determining the safest option for Aeolus would be to increase its
altitude and pass over the SpaceX satellite," the agency
tweeted. "The manoeuvre took place about 1/2 an orbit before the
potential collision. Not long after the collision was expected, Aeolus
called home as usual to send back its science data – proving the
manoeuvre was successful and a collision was indeed avoided."
Editor's
Note: The CEO or Iridium, another commercial constellation
currently in orbit, tweeted the following in response to this news:
"Hmmm. We move our satellites on average once a week and
don't put out a press release to say who we maneuvered around..."
Another commenter tweeted: "Collision avoidance is completely
routine and is a fundamental part of operating one or ten or a thousand
satellites." (9/2)
SpaceX Planning Four More
Falcon 9-Launched Starlink Missions This Year (Source:
Teslarati)
According to a suite of eight FCC Special Temporary Authority licenses
SpaceX filed for on August 30th, the company has plans for as many as
four additional Starlink satellite launches in 2019, on top of
Starlink’s May 23rd launch debut.
Additionally, SpaceX simultaneously requested that the FCC modify its
current Starlink application to permit a slight change in orbital
characteristics that would drastically improve the broadband satellite
constellation’s coverage in its early stages. Combined, SpaceX appears
to be extremely confident about the status and near-future progress to
be made by its prospective Starlink constellation, confidence
presumably inspired by the performance of the first 60 “v0.9”
satellites launched three months ago.
Over the last three months, 50 of the 60 Starlink satellites launched
on May 23rd have made their way to their final ~550 km (340 mi)
circular orbits. As observed by astronomer Jonathan McDowell and
partially confirmed by SpaceX’s own official statements, the company
remains in contact with and – more or less – in control of all but
three of the 60 Starlink prototypes. SpaceX did confirm in late June
that two functioning satellites were being intentionally deorbited to
test procedures and performance, while another three satellites had
partially failed and were to “passively deorbit”. (9/1)
Von Braun Space Station
Would Include Wheel of 24 Inflatable Modules, with Dream Chasers for
Escape Vehicles (Source: Daily Mail)
Designs for the first commercial space hotel that will be like a
'cruise ship' have been unveiled and they are truly out of this world.
The Von Braun Space Station is being designed by the Gateway
Foundation's Tim Alatorre and will have gravity, full-working
kitchens, bars and natural feeling interiors. It is expected to be
'operational by 2025 with 100 tourists visiting the station per week,'
according to the senior design architect for the project.
A 190-meter-diameter wheel will rotate to create a gravitational force
similar to the one felt on the moon. Twenty-four individual modules are
situated around the wheel and are filled with sleeping accommodations.
Alatorre added: "There will also be many of the things you see on
cruise ships: restaurants, bars, musical concerts, movie screenings,
and educational seminars." The architect expects the station to house
around 400. Some of the modules on the station will be sold as private
residences while government and science agencies will be able to rent
the others. Click here.
(8/31)
NASA Team to Decide if
Bigelow's Inflatable Modules Will Support Gateway Project for Artemis
(Source: KLAS)
Four dozen engineers and space scientists from NASA are in Southern
Nevada this week to check out some technology that could take us back
to the moon, and maybe to Mars. The project is called Gateway. NASA
wants to have an orbital station above the moon by 2024, and one of the
four companies being considered for that station is Bigelow Aerospace
in North Las Vegas.
Sounds odd to say this but one of the biggest problems with space is
that there isn’t enough space up there — space to live and work, that
is. It took close to 45 launches to assemble all of the pieces that
make up the International Space Station, at a cost of tens of billions
of dollars. What if you could create a larger, safer habitat around the
moon with only one or two launches? Checking out an expandable
spacecraft is one reason such a large team from NASA is in the Las
Vegas valley right now.
This craft could work as an orbital station above the moon, or as
habitats on the lunar surface. “This is a stand-alone spacecraft. It
doesn’t really depend on anything else. and it can orbit the moon, or
it can be in LEO (low Earth orbit) or it could actually be used on the
way to Mars. It’s tremendously versatile,” Kelleher said. (8/29)
The International Space
Station Is More Valuable Than Many People Realize (Source:
Scientific American)
In 1984 when President Reagan directed NASA to build a space station,
no one could have predicted the critical role it would play in human
space exploration nearly four decades later. The ISS took 12 years to
build with support from 16 nations and has been populated continuously
since Nov. 2000. A colossal achievement by any measure—the station
weighs a million pounds and is the single most expensive object ever
built. And it should be. The ISS gave the U.S. and its partners an
operational outpost in the most austere environment ever known.
Over its lifespan, more than 2,400 experiments have been conducted by
more than 230 visitors from 18 countries. The station's crew have
logged over 1,300 EVA hours on more than 217 spacewalks. Over their
lifetime, teenagers have seen a constant revolution in technology, some
of it exclusively the result of space access and research. And no one
should take for granted the colossal task of maintaining this orbital
toehold.
With ISS as its point of departure, NASA's recently announced Lunar
Gateway program will be the platform to prepare and propel humans to
Mars. To paraphrase James Bridenstine, Gateway will be the permanent
lunar command module. And in 2024 Gateway will facilitate the mission
objective of Artemis 1 to land astronauts near the Lunar South Pole.
But we can't get there from here—not without the ISS. Editor's Note:
Will ISS be the "point of departure" for Gateway? Can we really not get
the the moon or the Gateway without the ISS? (8/30)
Do We Need More Space
Stations? (Source: BBC)
The Lunar Gateway could help humans get back to the Moon, and perhaps
one day to Mars, for hopefully reduced costs – but funding missions
beyond our planet still isn’t going to be cheap. Why might we need deep
space-based infrastructure, and how could it help humanity back here on
Earth? Click here.
(8/31)
China Is Winning the
Solar Space (Source: Foreign Policy)
If any U.S. president in the last five decades had had the foresight to
take space-based solar power technology seriously, the incoming
man-made climate disaster could already have been averted with a clean,
constant, and limitless power source that costs less than burning
fossil fuels—and the U.S. could be leading the field. Today, if reports
are accurate, China is at the forefront of the technology, which is
basically solar power as you know it, except on steroids:
It can collect energy 24 hours a day, seven days a week, 365 days a
year. And instead of taking up millions of acres of land on the ground,
space solar farms would be located in geosynchronous orbit, about
22,000 miles above sea level—far above pesky things like clouds, rain,
and the cycle of day and night that make peak terrestrial solar power
so intermittent. China plans on putting a commercial-scale solar power
station in orbit by 2050, an accomplishment that would give it bragging
rights as the first nation to harness the sun’s energy in space and
beam power down to Earth.
And that’s where things start to get prickly. First, China’s space
program is partly a military program. The army oversees China’s space
activities, with “most of China’s ostensibly civilian space activities
[having] dual-use applications.” Second, China’s space ambitions are
all about the money—and an integral part of the country’s national
economic rejuvenation and development goals. So if the space-based
solar power demonstrator the Chinese Communist Party plans to have
online as soon as next year is successful, more countries could
potentially be enticed into Chinese President Xi Jinping’s signature
foreign-policy venture, the Belt and Road Initiative. (6/16)
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