BREMEN, Germany – In two and a half years, a consortium led by Italian space company D-Orbit plans to operate a synthetic aperture radar (SAR) satellite for infrastructure monitoring.
Under the 10 million euro ($11.07 million) NOCTUA Landscape Monitoring contract, D-Orbit and partners aim to provide information on the displacement of buildings, bridges and highways to government agencies and private citizens in Italy's Lombardia Region.
"We will manage the satellite and the SAR payload and give them information like, 'Hey that bridge moved three millimeters in the last year,'" Lorenzo Ferrario, D-Orbit chief technology officer, told SpaceNews at the Space Tech Expo Europe.
In case you are keeping track:
Black Holes Orbiting Even Bigger Black Holes Might Also Be Eating Each Other | Discover Magazine
When the LIGO collaboration first detected the spacetime ripples of a gravitational wave it came from the merger of two black holes. To date, scientists have detected at least ten pairs of black holes spiraling into and combining with each other.
Now, a group of researchers has proposed a new possibility. Black holes in the accretion disk surrounding a galaxy's central supermassive black hole might gather in similar orbits. This could lead black holes to go through multiple mergers, growing larger each time.
Egypt to send its first communication satellite into orbit on Friday - Reuters
CAIRO (Reuters) - Egypt will launch its first communication satellite into orbit on Friday, a move it says will improve its communications infrastructure and internet services and attract investment.
Tiba-1 is due to launch at 2108 GMT on one of Europe’s Arianespace rockets from a space center in French Guiana, officials said.
It is named after Thebes or Tiba in Arabic, an ancient Egyptian capital the ruins of which lie within the modern southern city of Luxor.
Meet the Artists in Mickalene Thomas's Orbit - The New York Times
Some she has known for years, others she discovered recently. All the eight artists Mickalene Thomas chose to include in her new exhibition, "A Moment's Pleasure," at the Baltimore Museum of Art, emphasize her broad network of like-minded creators.
One commonality is that they are "playing between figuration and abstraction," in the words of Carlyn Thomas, a curatorial assistant who worked on the show — a balance similar to Ms. Thomas's own art.
Zoë Charlton , 46, who has five works on vellum in the show depicting African-American figures , recently had one of her pieces acquired by the Phillips Collection in Washington, D.C.
This may worth something:
Advanced Electric Propulsion Thruster for NASA's Orbiting Lunar Outpost Achieves Full Power
Aerojet Rocketdyne’s Advanced Electric Propulsion System development thruster for the AEPS program operated at full power during testing at NASA Glenn, August 2019. Credit: Aerojet Rocketdyne
Aerojet Rocketdyne and NASA recently demonstrated an Advanced Electric Propulsion System (AEPS) thruster at full power for the first time, achieving an important program milestone. Aerojet Rocketdyne-developed AEPS thrusters are slated to be used on the Power and Propulsion Element of NASA’s Gateway, the agency’s orbiting lunar outpost for robotic and human exploration operations in deep space.
A Weird, Orbital Dance Keeps These Moons of Neptune Safely On Track | Discover Magazine
Bobbing up and down like a carousel horse might not sound like a stable way to orbit a planet, but it works for one little moon of Neptune. The planet's innermost known satellite, Naiad, has a tilted orbit and it moves up-and-down relative to its neighboring moon, Thalassa.
* * *
The arrangement of the two moons' orbits is an example of what scientists call an orbital resonance. Repeating patterns in their orbits apply a regular set of gravitational forces to the two moons. In this case, the repeating forces keep the moons in their orbits, but resonances can be disruptive as well.
China quietly used NASA's Jupiter probe to test its deep space network - SpaceNews.com
China used signals sent from NASA's Juno probe orbiting Jupiter to test the capabilities of ground stations vital to its deep space ambitions.
Scientists involved in developing China's tracking, telemetry and command (TT&C) capabilities listened-in on signals sent from Juno and successfully determined the spacecraft's Doppler frequency and hence its orbit.
The tests were carried out to assist planning for China's first independent interplanetary missions, including to Mars in 2020 and launching a probe to Jupiter around 2030. Such missions require to be able to track and communicate with spacecraft over hundreds of millions of kilometers, both sending commands and picking up faint signals that deliver data and telemetry.
Zeroing in on baby exoplanets could reveal how they form – Horizon Magazine Blog
The known exoplanets are certainly an eclectic bunch. They range in size from small rocky planets, like Earth, to gas giants that are many times bigger than Jupiter.
The vast majority of those we've discovered so far, however, are Earth- to Jupiter-sized planets that orbit very close to their host stars – often closer than Mercury orbits the sun. Astronomers are trying to understand how these close-orbiting planets came into existence by studying examples in different – preferably early – stages of formation.
No comments:
Post a Comment