Companies to Get Off
Ground in Private Space Race (Source: DW)
There's little chance Serena Aunon, Randolph "Randy" Bresnik and the
rest of NASA's roughly 50 astronauts will be blasting off into space in
the near future. Since scrapping its space shuttle fleet two years ago,
NASA only gets a select few astronauts to the International Space
Station (ISS) on Russian Soyuz capsules.
That made Aunon and Bresnik happy to be able to test out the inside of
Boeing's new CST-100 capsule. The pair sat right down in the pilot
seats and checked out the communications systems. It will be a few
years before the capsule will ever launch.
While the private companies are competing for the contracts for
building the spaceships that launch to the ISS, NASA is developing its
Orion spaceship that is to fly to the moon and beyond. The European
Space Agency (ESA) and companies such as Astrium in Germany are also
involved in the project. For Orion, NASA is using technology that ESA
developed for its unmanned materials transporter ATV. (8/14)
The Forgotten Cold War
Plan That Put a Ring of Copper Around the Earth (Source:
WIRED)
During the summer of 1963, Earth looked a tiny bit like
Saturn. The same year that Martin Luther King, Jr. marched on
Washington and Beatlemania was born, the United States launched half a
billion whisker-thin copper wires into orbit in an attempt to install a
ring around the Earth. It was called Project West Ford, and it’s a
perfect, if odd, example of the Cold War paranoia and military
mentality at work in America’s early space program.
The Air Force envisioned the West Ford ring as the largest radio
antenna in human history. Its goal was to protect the nation’s
long-range communications in the event of an attack from the
increasingly belligerent Soviet Union. During the late 1950’s,
long-range communications relied on undersea cables or over-the-horizon
radio. Should the Soviets have attacked an undersea telephone or
telegraph cable, America would only have been able to rely on radio
broadcasts to communicate overseas. But the fidelity of the ionosphere
is routinely disrupted by solar storms.
In 1958 at MIT’s Lincoln Labs, a research station on Hanscom Air Force
Base northwest of Boston. Project Needles, as it was originally known,
was Walter E. Morrow’s idea. He suggested that if Earth possessed a
permanent radio reflector in the form of an orbiting ring of copper
threads, America’s long-range communications would be immune from solar
disturbances and out of reach of nefarious Soviet plots. Click here.
Reconstructed Proteins Give Clues to
First Life on Earth -- or Mars (Source: Space Daily)
Reconstructions of 4 billion-year-old proteins have provided insights
into the habitat and origins of life on Earth, Spanish and U.S.
researchers say. The researchers report the reconstructed proteins can
survive in the extreme environments of high acidity and temperature
that would have existed on the early Earth and, possibly, also on Mars.
The ancient proteins' properties suggest they may have been adapted to
that environment, they said, sharing features with "extremophiles,"
bacteria living today in hot springs and deep within Earth's crustal
rocks. An intriguing possibility suggested by the protein study, the
researchers said, is that the ancient protein came to Earth in
meteorites, having formed at an earlier time on another planet -- like
Mars. (8/8)
New NASA Mission to Help Us Learn How
to Mine Asteroids (Source: Space Daily)
Over the last hundred years, the human population has exploded from
about 1.5 billion to more than seven billion, driving an
ever-increasing demand for resources. To satisfy civilization's
appetite, communities have expanded recycling efforts while mine
operators must explore forbidding frontiers to seek out new deposits,
opening mines miles underground or even at the bottom of the ocean.
Asteroids could one day be a vast new source of scarce material if the
financial and technological obstacles can be overcome. Asteroids are
lumps of metals, rock and dust, sometimes laced with ices and tar,
which are the cosmic "leftovers" from the solar system's formation
about 4.5 billion years ago. Click here.
(8/12)
Pomerantz: Virgin On Track for
Mid-2014 Tourist Service (Source: Parabolic Arc)
It looks like Virgin Galactic is sticking to the projections it made
earlier this year for SpaceShipTwo, despite a 15-week (and counting)
gap in powered test flights. Is this anything like when the pilot
promises to make up time en route? The way things are going, the
schedules for SpaceShipOne and LauncherOne slowly converge. Maybe they
should just junk the hybrid engine and speed up development of the
liquid-fuel one for LauncherOne. (8/13)
Sierra Nevada Completes Ground Tow
Tests for Dream Chaser (Source: SNC)
Sierra Nevada Corp. has completed tow testing for their Dream Chaser
spacecraft at Dryten Flight Research Center in California. The ground
tow tests were conducted in preparation for the upcoming approach and
landing test scheduled for the third quarter 2013.
The tow tests were performed inpreparation for pre-negotiated,
paid-for-performance milestones with NASA's Commercial Crew Program
(CCP), which is facilitating U.S. companies' development of spacecraft
and rockets that can launch from American soil. (8/13)
NASA's Juno is Halfway to Jupiter
(Source: NASA JPL)
NASA's Juno spacecraft is halfway to Jupiter. The Jovian-system-bound
spacecraft reached the milestone today at 8:25 a.m. EDT. Juno was
launched on Aug. 5, 2011. Once in orbit around Jupiter, the spacecraft
will circle the planet 33 times, from pole to pole, and use its
collection of eight science instruments to probe beneath the gas
giant's obscuring cloud cover. (8/12)
Here's How NASA Will Use a 3D Printer
on the ISS (Source: The Verge)
The ability to fabricate equipment in space could save NASA
considerable time and energy. "As you might imagine on Space Station,
whatever they have available on orbit is what they have to use," says
Niki Werkheiser, NASA's lead on the zero-G project. "And just like on
the ground, you have parts that break or get lost."
NASA will be able to preload blueprints onto the hardware, but has the
ability to upload new files from the ground as well; Creamer notes that
astronauts may be able to "make things we've thought of that could be
useful" as well as simply replacing old tools. (8/13)
No comments:
Post a Comment