Gravitational lenses could allow a galaxy-wide internet
Wednesday, 24 March 2021 13:06
As Carl Sagan once said, "The sky calls to us. If we do not destroy ourselves, we will one day venture to the stars." And our first emissaries to the stars will be robotic probes. These interstellar probes will be largely autonomous, but we will want to communicate with them. At the very least, we will want them to phone home and tell us what they've discovered. The stars are distant, so the probes will need to make a very long-distance call.
Currently, we communicate with space probes throughout the solar system via the Deep Space Network (DSN). This is a collection of antenna stations located around the world. Each station has one large 70-meter dish and several smaller dishes. Such large radio dishes are necessary because the signals from a space probe are rather faint, and they grow fainter with increasing distance.
When we start sending probes to other stars, we're going to need an interstellar communication network.
Space vs. materials – orbital testing outside Space Station
Wednesday, 24 March 2021 12:00
Space leaves its mark on materials: exposure to such a harsh environment can darken, crack or crater their surfaces – or even erode them away entirely. The nothingness of hard vacuum can also provoke ‘outgassing’ vapours from materials that might degrade delicate mission systems. Accordingly ESA and the French space agency CNES are giving European researchers the chance to pit the latest aerospace materials directly against space.
NASA engineers analyze navigation needs of Artemis moon missions
Wednesday, 24 March 2021 11:53
Space communications and navigation engineers at NASA are evaluating the navigation needs for the Artemis program, including identifying the precision navigation capabilities needed to establish the first sustained presence on the lunar surface.
"Artemis engages us to apply creative navigation solutions, choosing the right combination of capabilities for each mission," said Cheryl Gramling, associate chief for technology in the Mission Engineering and Systems Analysis Division at Goddard Space Flight Center in Greenbelt, Maryland. "NASA has a multitude of navigation tools at its disposal, and Goddard has a half-century of experience navigating space exploration missions in lunar orbit."
Alongside proven navigation capabilities, NASA will use innovative navigation technologies during the upcoming Artemis missions.
"Lunar missions provide the opportunity to test and refine novel space navigation techniques," said Ben Ashman, a navigation engineer at Goddard. "The moon is a fascinating place to explore and can serve as a proving ground that expands our navigation toolkit for more distant destinations like Mars.
Redwire to go public through a SPAC merger
Wednesday, 24 March 2021 11:07
WASHINGTON — Redwire, a firm that has acquired several space technology companies in the last year, announced March 25 that it will go public by merging with a special-purpose acquisition corporation (SPAC).
Redwire said it will merge with Genesis Park Acquisition Corp.
GAO to probe choice of Alabama as Space Command's headquarters
Wednesday, 24 March 2021 11:00
GAO: DoD should better coordinate hypersonic weapons programs
Wednesday, 24 March 2021 11:00
Cutting edge ground recorders selected to measure future X-59 Quiet Supersonic Flights
Wednesday, 24 March 2021 11:00
Parsons awarded $250M Seabed-to-Space ISR contract
Wednesday, 24 March 2021 11:00
Lockheed Martin awarded $3.7B to modernize key missile defense mission
Wednesday, 24 March 2021 11:00
AFRL directed energy industry days
Wednesday, 24 March 2021 11:00
Dubai reports launch of DMSat-1 Atmospheric Monitoring Microsatellite
Wednesday, 24 March 2021 11:00
Pentagon extends contract options for nuclear microreactor prototype
Wednesday, 24 March 2021 11:00
US military must accelerate use of artificial intelligence, JAIC chief says
Wednesday, 24 March 2021 11:00
Florida company licenses NASA tech that keeps electronics cool
Wednesday, 24 March 2021 11:00
Warming drives 'fundamental' changes to ocean, scientists warn
Wednesday, 24 March 2021 11:00