Trump's Budget Forgets That Science is
Insurance for America (Source: WIRED)
President Trump's proposed 2018 budget will never actually determine
how the government spends your money: POTUS proposes and Congress
disposes. But that's no reason for relief. In fact, it makes this
document even more of a nightmare. It doesn't direct funding, but it
does put the Trump administration's underlying philosophy of governance
on display. And it's a harsh one. Click here.
(8/1)
SES Satellite Woes Await Launch of New
Bird in 2018 (Source: Space News)
Twelve transponders on an aging SES communications satellite have
failed. The company said that it lost 12 transponders last month on
NSS-806, a 19-year-old C- and Ku-band satellite, representing nearly
one third of that satellite's overall capacity. SES said that
malfunction, along with the failure of the AMC-9 spacecraft in June,
will have only a temporary effect on the company's finances given the
scheduled launch early next year of a new satellite, SES-14. (8/1)
Navy Interested in Army Collaboration
for Small Satellite Comms (Source: Breaking Defense)
The Navy is interested in cooperating with the Army on using small
satellites for tactical communications. An unnamed senior defense
official said that, in the event of a conflict with an adversary like
China, the Navy and Army will need to cooperate using simple,
low-bandwidth communications. That could be performed using small
satellites launched on short notice, a concept long advocated by
proponents of operationally responsive space. (8/1)
Jets Retrofitted with
Telescopes for Bird's-Eye View of Eclipse (Source: CBC)
NASA has retrofitted a pair of WB-57F jets with telescopes to follow
the course of the Aug. 21 solar eclipse. "These could well turn out to
be the best ever observations of high-frequency phenomena in the
corona," said project co-investigator Dan Seaton of the University of
Colorado Boulder. (7/28)
Supersonic X-Plane's
Unusual Inlet Performs Well in Wind Tunnel (Source: Flight
Global)
A series of wind tunnel tests revealed the unusual engine inlet
positioning for NASA’s supersonic X-plane meets the performance goals
for the Lockheed Martin-designed aircraft, a NASA Glenn Research Center
aeronautics engineer says. The quiet supersonic transport (QueSST)
X-plane demonstrator will begin a series of flight tests in 2020 with
an inlet placed atop the fuselage and behind the cockpit, a rare
configuration for a supersonic aircraft not seen since early 1950s
designs, such as the Douglas X-3 Stiletto and Convair F2Y Sea Dart.
The unusual engine placement is driven by the purpose of the QueSST
demonstrator, explains Ray Castner, a NASA Glenn engineer, speaking at
the Experimental Aircraft Association’s annual event in Oshkosh,
Wisconsin on 25 July. NASA is funding the flight demonstration to
evaluate how boom-shaping techniques developed after decades of
research affect how humans perceive the acoustic disruption caused by
breaking the sound barrier. (8/1)
Winston Scott at Florida
Tech: Launching into the Final Frontier (Source: Florida
Tech)
Scott, Senior Vice President for External Relations and Economic
Development at Florida Tech, believes education was integral to making
his dreams take flight, a message he has shared with students. In
addition to representing Florida Tech in the community and supporting
the university’s research park, Scott is a professor of aeronautics and
music. Click here.
(8/1)
Why the SpaceX Falcon
Heavy Rocket Just Might Work (Source: Popular Mechanics)
The Falcon 9's cycle—launch, then return of the first stage to terra
firma or to a drone ship in the ocean—is becoming routine. Musk has
already indicated he's planning to return all three components of the
Falcon Heavy's first stage to Earth. The Falcon Heavy will use a common
procedure for the three-part stage: The side boosters, clones of its
center booster (essentially, each the first stage of a Falcon 9), burn
out prior to the center and are jettisoned.
The likely plan is to land the two outer boosters on solid ground, as
their shorter burn times mean they will not have traveled as far, while
the center booster will use a drone-ship landing, which has the
flexibility to be placed wherever in the ocean is convenient, based on
the rocket's trajectory. The more stages SpaceX can successfully
recover, the cheaper launches will be for its customers. Click here.
(8/1)
http://www.popularmechanics.com/space/rockets/news/a27360/spacex-falcon-heavy/?src=socialflowTW
NASA Is Picking Older
Astronauts Who Leave Earlier (Source: NASA Watch)
"NASA's periodic selection of astronauts is a highly selective process
accepting applications from the general population, wherein the
mechanics of selection are not made public. This research was an effort
to determine if biases (specifically age) exist in the process and, if
so, at which points they might manifest ... the most striking
observation was the loss of age diversity at each stage of selection.
Applicants younger or older than approximately 40 years were
significantly less likely to receive invitations for interviews and
were significantly less likely to be selected as an astronaut." Click here.
(7/31)
First Iodine Fueled Ion
Engines Pass Major Milestone (Source: Parabolic Arc)
Space propulsion firm Busek Co. Inc. confirms its ‘BIT-3’ ion thruster
system completed two separate Critical D esign Reviews (CDR) for
upcoming CubeSat space flight programs. CDRs are major milestones prior
to manufacturing flight hardware, the initial set of BIT-3 flight
systems being scheduled for delivery Q1 2018. The iodine fueled solar
electric propulsion systems are the first of their kind which enable an
entirely new range of small spacecraft missions.
Two public missions relying upon the BIT-3 for high delta-v propulsion
include Morehead State University’s Lunar IceCube and Arizona State
University’s LunaH-Map. The NASA-funded, University-lead science
missions will each place a 14 kilogram (30.9 lbs.) CubeSat into lunar
polar orbit after deployment from NASA’s Space Launch System EM-1
mission. The miniature solar electric propulsion system incorporates
several patented and patent-pending features, including the use of
solid iodine propellant versus traditional high-pressure Xenon gas.
(8/1)
No comments:
Post a Comment