Earth from Space: Mississippi River
Friday, 14 October 2022 07:00
Write a comment
Mississippi River, one of the longest rivers in North America, is featured in this multi-temporal radar image captured by the Copernicus Sentinel-1 mission.
Seeing how a spacecraft dies
Friday, 14 October 2022 06:29 Write a comment
Seeing how a spacecraft dies
Astra’s strategy to address NASDAQ warning
Thursday, 13 October 2022 20:35 Write a comment
MOUNTAIN VIEW, Calif. – While Astra Space is taking the delisting warning the company received from NASDAQ seriously, the company has “lots of different strategies” to address it, Astra CEO Chris Kemp said at the Satellite Innovation conference here.
NASA's Lucy spacecraft prepares to swing by Earth
Thursday, 13 October 2022 20:07 Write a comment
On Oct. 16, at 7:04 a.m. EDT, NASA's Lucy spacecraft, the first mission to the Jupiter Trojan asteroids, will skim the Earth's atmosphere, passing a mere 220 miles (350 kilometers) above the surface. By swinging past Earth on the first anniversary of its launch, Lucy will gain some of the orbital energy it needs to travel to this never-before-visited population of asteroids.
The Trojan asteroids are trapped in orbits around the sun at the same distance as Jupiter, either far ahead of or behind the giant planet. Lucy is currently one year into a twelve-year voyage. This gravity assist will place Lucy on a new trajectory for a two-year orbit, at which time it will return to Earth for a second gravity assist. This second assist will give Lucy the energy it needs to cross the main asteroid belt, where it will observe asteroid Donaldjohanson, and then travel into the leading Trojan asteroid swarm.
Starlink kicks off Asia expansion in search of more subscribers
Thursday, 13 October 2022 19:59 Write a comment
Starlink is deepening its foothold in Japan as SpaceX’s satellite broadband service looks to expand elsewhere in Asia, which will be critical for generating much-needed revenues.
The post Starlink kicks off Asia expansion in search of more subscribers appeared first on SpaceNews.
Starlink’s market dominance affecting DoD’s hybrid network plans
Thursday, 13 October 2022 19:50 Write a comment
As SpaceX’s Starlink continues to gain military customers, the Pentagon worries that the company’s use of proprietary technology will make it difficult to integrate into a hybrid architecture that DoD hopes to build
Phase Four adopts iodine for next-gen Max-V engine
Thursday, 13 October 2022 17:34 Write a comment
Propulsion startup Phase Four is expanding its Maxwell plasma propulsion line by offering Max-V, an iodine-fueled engine.
The post Phase Four adopts iodine for next-gen Max-V engine appeared first on SpaceNews.
US opts to not rebuild renowned Puerto Rico telescope
Thursday, 13 October 2022 16:58 Write a comment
The National Science Foundation announced Thursday that it will not rebuild a renowned radio telescope in Puerto Rico, which was one of the world's largest until it collapsed nearly two years ago.
#MeToo in space: We must address the potential for sexual harassment and assault away from Earth
Thursday, 13 October 2022 15:59 Write a comment
A new dawn of space exploration is upon us. NASA aims to land the first woman and person of color on the moon by the end of 2025, and send a crew on a year-and-a-half long mission to Mars in the 2030s.
To ensure a safe and pleasurable journey to the final frontier, national agencies such as NASA and private companies such as SpaceX must address both the technical and human factors associated with working and living in space. Yet, the realities of sexuality and intimacy in space are mostly omitted.
How will people be able to live for prolonged periods of time in the isolated, confined and extreme conditions of spacecrafts and other planets? How will people navigate falling in love, having sex and beginning and ending relationships under such conditions? How will people deal with the stress, limited choice of intimate partners and issues related to consent? And how will sexual harassment or assault be prevented or addressed?
Op-ed | You can’t go to space on a Ford Pinto (and other harsh truths I learned courting venture capital)
Thursday, 13 October 2022 14:44 Write a comment
Daunted but undeterred, I set off into the depths of venture capitalism, strategy, marketing, pitches, PowerPoint slides, NewSpace, small talk, zero-sum games, and artificial politeness.
The post Op-ed | You can’t go to space on a Ford Pinto (and other harsh truths I learned courting venture capital) appeared first on SpaceNews.
Video: Solar Orbiter speeds toward its next rendezvous with the sun
Thursday, 13 October 2022 13:22 Write a comment
The ESA-led Solar Orbiter mission arrives at its next close approach to the sun on 12 October 2022 at 19:12 UTC (21:12 CEST). This sequence of images shows the progress of the ESA/NASA spacecraft as it heads inwards on its voyage of discovery. The sequence begins on 20 September and finishes on 10 October.
The sequence was taken by the Extreme Ultraviolet Imager (EUI) using the Full sun Imager (FSI) telescope, and shows the sun at a wavelength of 17 nanometers. This wavelength is emitted by gas in the sun's atmosphere with a temperature of around one million degrees. The color on this image has been artificially added because the original wavelength detected by the instrument is invisible to the human eye.
So much of modern society relies on spacecraft in orbit around Earth to provide essential communications and navigation. Understanding more about the sun and the "space weather" it generates will help companies operate their satellites around Earth safely and securely.
Protecting Mars Sample Return spacecraft from micrometeorites requires high-caliber work
Thursday, 13 October 2022 13:08 Write a comment
Micrometeorites are a potential hazard for any space mission, including NASA's Mars Sample Return. The tiny rocks can travel up to 50 miles per second. At these speeds, "even dust could cause damage to a spacecraft," said Bruno Sarli, a NASA engineer at NASA's Goddard Space Flight Center in Greenbelt, Maryland.
Sarli leads a team designing shields to protect NASA's Mars Earth Entry System from micrometeorites and space debris. Recently, he traveled to a NASA lab designed to safely re-create dangerous impacts to test the team's shields and computer models.
Set far away from residents and surrounded by dunes, the Remote Hypervelocity Test Laboratory at NASA's White Sands Test Facility in Las Cruces, New Mexico, has supported every human spaceflight program from the Space Shuttle to Artemis. The lab also supports testing for the International Space Station, Commercial Crew, and Commercial Resupply programs.
The lab uses two-stage light gas guns to accelerate objects to speeds that simulate micrometeorite and orbital debris impacts on spacecraft shielding. The first stage uses gun powder as a propellent the way a standard gun does.
Op-ed | Lessons in Creativity from Space Astronauts
Thursday, 13 October 2022 13:00 Write a comment
New Shepard space flyer and Voyager Space chairman Dylan Taylor reflects on five work lessons we can take from astronauts.
The post Op-ed | Lessons in Creativity from Space Astronauts appeared first on SpaceNews.
Nano-material diet can mean safer, slimmer satellites
Thursday, 13 October 2022 10:47 Write a comment
A miniscule special ingredient blended with satellite materials could lead to significant mass savings for future missions. An ESA project with Adamant Composites in Greece tested how the addition of graphene – microscopic flakes of carbon just a single atom thick, combining robust strength with electrical conductivity – plus other nano-sized materials has the potential to optimise a satellite’s thermal and electrical properties.
Nano-material diet means safer, slimmer satellites
Thursday, 13 October 2022 10:47 Write a comment
A miniscule special ingredient blended with satellite materials could lead to significant mass savings for future missions. An ESA project with Adamant Composites in Greece tested how the addition of graphene – microscopic flakes of carbon just a single atom thick, combining robust strength with electrical conductivity – plus other nano-sized materials has the potential to optimise a satellite’s thermal and electrical properties.