Raytheon Creates New Space Unit (Source:
Breaking Defense)
Raytheon’s newly constituted Intelligence & Space unit is
positioning itself as a provider of the “glue” needed to hold together
future systems of systems, such as those supporting all-domain
operations, explains President Roy Azevedo. The idea is not to focus on
selling particular Raytheon products, but helping customers — now both
military and civil — to define architectures for connecting the
hardware and software in a system. Raytheon Intelligence & Space is
one of the four newly organized business units flowing out of the May
mega-merger of Raytheon and United Technologies Corp. (UTC) into
Raytheon Technologies Corporation. The other three business units are
Collins Aerospace Systems, Pratt & Whitney and Raytheon Missiles
& Defense. (7/20)
Astra Plans August Launch at Alaska
Spaceport (Source: Space News)
Astra announced Monday that its next launch attempt will be in early
August. The company said its Rocket 3.1 vehicle will launch from
Kodiak, Alaska, between Aug. 2 and 7, with a three-and-a-half-hour
launch window each day. The company had attempted a launch of its
Rocket 3.0 in March as part of the DARPA Launch Challenge, but had to
scrub less than a minute before liftoff on the last day of the
competition. That rocket was later damaged during preparations for
another launch attempt later in March. (7/20)
"Minibus" Spending Bill Includes DoD
and NASA Funding (Source: House Approps Committee)
The full House will debate a fiscal year 2021 "minibus" spending bill
next week that includes both the Pentagon and NASA. The House
Appropriations Committee said that it will combine seven spending bills
into a single minibus bill, including both the defense spending bill
and the commerce, justice and science (CJS) spending bill, which funds
NASA and NOAA. Those bills were approved by the full committee last
week. The Senate has yet to start work on its version of fiscal year
2021 spending bills. (7/20)
Balloon Startup Sells Imagery,
Competing with Satellite Remote Sensing (Source: Space News)
A startup planning to compete with satellite imagery using balloons is
starting to sell images. Near Space Labs says it is offering images of
Texas, taken from cameras on weather balloons, at prices of $10—50 per
square kilometer. The company says it can offer images with a
resolution of 30 centimeters and weekly updates. In Texas, Near Space
Labs is focusing on major cities as well as energy production
facilities and land conservation sites in rural areas. (7/20)
Baikonur Coronavirus Outbreak Grows
(Source: Moscow Times)
There is a major coronavirus outbreak in the city of Baikonur, home to
the famous spaceport. Local officials said there has been a major
increase in cases, overwhelming the city's hospital. While the official
death toll in the city of 40,000 is 30, the actual number of people who
died of COVID-19 may be several times higher. The outbreak has not
halted work at the nearby spaceport, including a Progress cargo
spacecraft launch scheduled for Thursday. (7/21)
Active Volcanoes on Venus
(Source: AFP)
There may be dozens of active volcanoes on the surface of Venus.
Scientists modeling the planet conclude in a new paper that features on
the surface called coronae must have been active volcanically in the
last few million years if they have certain features, such as a trench
surrounding the structure. Of the 133 coronae examined in radar images
of Venus taken by NASA's Magellan spacecraft, 37 have those features,
suggesting that they either were active in the very recent past or may
still be active today. Scientists previously believed the planet was
dormant geologically given a lack of plate tectonics. (7/20)
NASA’s Spacesuits Have a Gender
Problem. These Women are Fixing it (Source: Christian Science
Monitor)
Last fall, NASA revealed new spacesuits designed for the Artemis
program, in which the agency aims to land the first woman on the moon.
Those new suits, called exploration extravehicular mobility units, or
xEMUs for short, will still be modular, says Ms. Aitchison, who leads
the design team. But the team uses digital renderings of about 100 body
shapes and sizes as a guide.
“We’re designing spacesuits for humans, not men or women specifically,
just humans. But over the years, we’ve really had to evolve our
thinking about what that means. It’s kind of a shift from thinking not
just of men as bigger women or women as small men,” Ms. Aitchison says.
“Our bodies are truly different.” Recent classes of astronauts have
been roughly half women. “They’re the future of the space program,”
says Amy Foster, associate professor of history at the University of
Central Florida and author of "Integrating Women Into the Astronaut
Corps." So systems are being designed with them in mind. (7/20)
How NASA Built a Self-Driving Car for
Its Next Mars Mission (Source: WIRED)
Perseverance is significantly more autonomous than any of NASA’s
previous four rovers and is designed to be what Philip Twu, a robotics
system engineer at NASA’s Jet Propulsion Laboratory, calls a
“self-driving car on Mars.” Like the ones on Earth, Perseverance will
navigate using an array of sensors feeding data to machine vision
algorithms. But whereas terrestrial autonomous vehicles are packed with
the best computers money can buy, the main computer on Perseverance is
about as fast as a high-end PC … from 1997. The only way Perseverance’s
poky brain is able to handle all this autonomous driving is because
NASA gave it a second computer that acts like a robotic driver.
On previous rovers, the navigation software had to share limited
computing resources with all the other systems. So to get from one
point to another, the rover would take a picture to get a sense of its
surroundings, drive a little, and then stop for a few minutes to figure
out its next move. But since Perseverance can offload many of its
visual navigation processes to a dedicated computer, it won’t have to
take this stop-and-go approach to Martian exploration. Instead, its
main computer can figure out how to get Perseverance where it’s
supposed to go, and its machine vision computer can make sure it
doesn’t hit any rocks on the way. “We’re moving closer and closer to
being able to continuously drive and think,” Twu says.
Autonomy is critical for Perseverance’s mission. The distance between
Earth and Mars is so large that it can take a radio signal traveling at
the speed of light up to 22 minutes to make a one-way trip. The long
delay makes it impossible to control a rover in real time, and waiting
nearly an hour for a command to make a round trip between Mars and the
Earth isn’t practical either. Perseverance has a packed schedule—it
needs to drop off a small helicopter for flight tests, then collect
dozens of rock samples and find a place on the surface to store them.
(A later mission will bring the cache back to Earth so it can be
studied for signs of life.) If the rover has any hope of accomplishing
all of this in the year allotted for its primary mission, it has to be
able to make a lot of navigation decisions by itself. (7/21)
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