Current Satellites News and Events

Current Satellites News and Events, Satellites News Articles.
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Origami-inspired antenna technology for use in small satellites
In a brand-new study, scientists from Korea and the USA have revealed a novel antenna design for use in CubeSat nanosatellites using state-of-the-art communications systems like 6G communications. Using theoretical knowledge based on origami theory, mechanical dynamics, and antenna array principles, the researchers built a small, lightweight, and reconfigurable antenna for CubeSat depending on operational mode selected. This could potentially mark the beginning of a new era in satellite communications! (2021-02-11)

Record-breaking laser link could help us test whether Einstein was right
Scientists from Australia have set a world record for the most stable transmission of a laser signal through the atmosphere. The team combined Aussie 'phase stabilisation' technology with advanced self-guiding optical terminals to 'effectively eliminate atmospheric turbulence,' an advance which could help test Einstein's theory of general relativity. (2021-01-22)

Magnetic waves explain mystery of Sun's outer layer
in a new study published in The Astrophysical Journal, researchers combined observations from a telescope in New Mexico, the United States, with satellites located near Earth to identify a link between magnetic waves in the chromosphere and areas of abundant ionised particles in the hot outer atmosphere. (2021-01-22)

Saturn's tilt caused by its moons
Two scientists from CNRS and Sorbonne University working at the Institute of Celestial Mechanics and Ephemeris Calculation (Paris Observatory - PSL/CNRS) have just shown that the influence of Saturn's satellites can explain the tilt of the rotation axis of the gas giant. Their work, published on 18 January 2021 in the journal Nature Astronomy, also predicts that the tilt will increase even further over the next few billion years. (2021-01-20)

The world's first integrated quantum communication network
Chinese scientists have established the world's first integrated quantum communication network, combining over 700 optical fibers on the ground with two ground-to-satellite links to achieve quantum key distribution over a total distance of 4,600 kilometers for users across the country. (2021-01-06)

Subscriptions to satellite alerts linked to decreased deforestation in Africa
Deforestation dropped by 18 percent in two years in African countries where organizations subscribed to receive warnings from a new service using satellites to detect decreases in forest cover in the tropics. (2021-01-04)

Water limitations in the tropics offset carbon uptake from arctic greening
More plants and longer growing seasons in the northern latitudes have converted parts of Alaska, Canada and Siberia to deeper shades of green. Some studies translate this Arctic greening to a greater global carbon uptake. But new research shows that as Earth's climate is changing, increased carbon absorption by plants in the Arctic is being offset by a corresponding decline in the tropics. (2020-12-18)

Study confirms dark coating can reduce satellite reflectivity
Observations conducted by the Murikabushi Telescope of Ishigakijima Astronomical Observatory confirmed that dark coating can reduce satellite reflectivity by half. There are concerns that numerous artificial satellites in orbit could impair astronomical observations, but these findings may help alleviate such conditions. (2020-12-08)

RUDN University professor suggested how to clean up space debris
A specialist in spacecraft movement control analyzed the process of placing vehicle stages, boosters, and other space debris into the so-called disposal orbit and suggested cleaning lower orbits up with a spacecraft that has modules with engine units on board. These modules will attach to space debris objects and move them away. As for the geostationary orbit, a preferable way to clean it up would be a towing spacecraft that transports space debris objects into the disposal orbit. (2020-12-02)

NIST designs a prototype fuel gauge for orbit
Liquids aren't as well behaved in space as they are on Earth. Inside a spacecraft, microgravity allows liquids to freely slosh and float about. This behavior has made fuel quantity in satellites difficult to pin down, but a new 3D-imaging fuel gauge engineered at the National Institute of Standards and Technology could offer an ideal solution. (2020-11-12)

Weather-proof chip aims to take self-driving tech, wireless communications to next level
A new device created by researchers at The University of Texas at Austin can overcome challenges like bad weather to deliver more secure, reliable communications. This could aid military communications in challenging areas, improve the ability of self-driving cars to see the environment around them and speed up wireless data for potential 6G networks. (2020-11-12)

New research on imposter stars may improve astronomical data
Quick flashes of light reflecting from satellites and debris in Earth's orbit are extremely common, according to new findings from the University of North Carolina at Chapel Hill that may improve the accuracy of astronomical data. For the first time, astronomers report the flashes, which are often mistaken for stars, occur more than 1,000 times an hour across the sky. (2020-11-05)

The craters on Earth
A two-volume atlas presents and explains the impact sites of meteorites and asteroids worldwide (2020-11-03)

Towards next-generation molecule-based magnets
Magnets are to be found everywhere in our daily lives, whether in satellites, telephones or on fridge doors. However, they are made up of heavy inorganic materials whose component elements are, in some cases, of limited availability. Now, researchers from the CNRS, the University of Bordeaux and the ESRF (European Synchrotron Radiation Facility in Grenoble) have developed a new lightweight molecule-based magnet, produced at low temperatures, and exhibiting unprecedented magnetic properties. (2020-10-29)

Location and extent of coral reefs mapped worldwide using advanced AI
researchers from the Arizona State University Center for Global Discovery and Conservation Science have generated a global coral reef extent map using a single methodology capable of predicting the location of shallow coral reefs with nearly 90% accuracy. (2020-10-28)

Study: Most migratory birds rely on a greening world
A new study from the Cornell Lab of Ornithology confirms that most birds -- but not all -- synchronize their migratory movements with seasonal changes in vegetation greenness. This is the first study of its kind to cover the Western Hemisphere during the year-long life cycle of North American migratory birds that feed on vegetation, seeds, nectar, insects, or meat. (2020-10-27)

NASA rainfall imagery reveals Norbert regains tropical storm status
Norbert has been meandering around in the Eastern Pacific Ocean for several days as a tropical depression. A NASA satellite rainfall product that incorporates data from satellites and observations revealed that Norbert has regained tropical storm status after showing increased organization and deep convection. (2020-10-14)

NASA sees Tropical Storm Nangka soaking Hainan Island
Using a NASA satellite rainfall product that incorporates data from satellites and observations, NASA estimated Nangka's rainfall rates as the storm soaked Hainan Island, China early on Oct. 13 (EDT). (2020-10-13)

NASA shows heaviest rainfall displaced in Typhoon Chan-hom
Typhoon Chan-hom was still moving parallel to Japan's east coast as NASA's satellite rainfall product, that incorporates data from satellites and observations, showed its heaviest rainfall was pushed northeast of center. (2020-10-09)

Signals from distant stars connect optical atomic clocks across Earth for the first time
Using radio telescopes observing distant stars, scientists have connected optical atomic clocks on different continents. The results were published in the scientific journal Nature Physics by an international collaboration between 33 astronomers and clock experts at the National Institute of Information and Communications Technology (NICT, Japan), the Istituto Nazionale di Ricerca Metrologica (INRIM, Italy), the Istituto Nazionale di Astrofisica (INAF, Italy), and the Bureau International des Poids et Mesures (BIPM, France). (2020-10-08)

Sustainable space management at risk under US-centric policies
''Other nations need to speak up, now,'' argue Aaron Boley and Michael Byers in this Policy Forum, in response to U.S. policymakers' attempts to dominate commercial space mining based on a strategic interpretation of international space law. (2020-10-08)

NASA analyzes rainfall around Typhoon Chan-hom's ragged eye
A NASA satellite rainfall product that incorporates data from satellites and observations found heavy rainfall occurring throughout Typhoon Chan-hom and the heaviest rainfall in the eyewall. Chan-hom is expected to bring rainfall to Japan on its track through the Northwestern Pacific Ocean. (2020-10-07)

California's August Complex largest fire in state's history
NOAA/NASA's Suomi NPP satellite captured another startling image of the August Complex of fires that has grown to over 1,000,000 acres burned (1,006,140 acres total) and because of that grim milestone the complex has been dubbed a ''gigafire.'' The August Complex is only 58% contained. (2020-10-06)

NASA finds heavy rainfall ringing major Hurricane Maria's eye
Imagine being able to look down at a storm from orbit in space, and provide data that lets scientists calculate the rate in which rain is falling throughout it. That is what a NASA satellite rainfall product does as it incorporates data from satellites and observations. NASA found very heavy rainfall ringing around the compact eye of Major Hurricane Marie. (2020-10-02)

NASA observations aid efforts to track California's wildfire smoke from space
Wildfires have been burning across the state of California for weeks - some of them becoming larger complexes as different fires merge. One of those was the August Complex Fire, which reportedly began as 37 distinct fires caused by lightning strikes in northern California on Aug. 17. That fire is still burning over a month later. (2020-09-25)

5G wireless may lead to inaccurate weather forecasts
Upcoming 5G wireless networks that will provide faster cell phone service may lead to inaccurate weather forecasts, according to a Rutgers study on a controversial issue that has created anxiety among meteorologists. (2020-09-24)

Faint orbital debris that threatens satellites not being monitored closely enough, warn astronomers
University of Warwick astronomers are warning that orbital debris posing a threat to operational satellites is not being monitored closely enough, as they publish a new survey finding that over 75% of the orbital debris they detected could not be matched to known objects in public satellite catalogues. (2020-09-24)

NASA estimating Beta's rains moving into the Tennessee valley
Using a NASA satellite rainfall product that incorporates data from satellites and observations, NASA estimated Post-tropical Cyclone Beta's rainfall rates as it moved over Mississippi, Alabama and Tennessee. Beta continues a steady northeast track into Mississippi, bringing heavy rainfall across Mississippi into the Tennessee Valley. (2020-09-24)

Solar storm forecasts for Earth improved with help from the public
Scientists used observations recorded by members of the public to increase accuracy of computer model predictions of when harmful CMEs will hit Earth. (2020-09-18)

NASA confirms development of record-breaking tropical storm Wilfred, ending hurricane list
The list of hurricane names is officially used up with the development of the 23rd tropical cyclone of the year. Tropical Storm Wilfred just formed in the Eastern Atlantic Ocean today, Sept. 18. Using a NASA satellite rainfall product that incorporates data from satellites and observations, NASA estimated Wilfred's rainfall rates. (2020-09-18)

NASA-NOAA satellite tracking record-breaking Tropical Storm Paulette
NASA-NOAA's Suomi NPP satellite provided forecasters with a visible image of Tropical Storm Paulette as it tracked through the Central North Atlantic Ocean on Sept. 8, 2020. Paulette, like some other tropical storms this year, has broken a season record. (2020-09-08)

California's creek fire creates its own pyrocumulonimbus cloud
On Friday September 4, 2020 at about 6:44 PM PDT the Creek Fire began in the Big Creek drainage area between Shaver Lake, Big Creek and Huntington Lake, Calif. (2020-09-08)

NOAA-NASA satellite reveals burn scars from Elkhorn Fire in California
Imagery from the VIIRS instrument aboard NASA/NOAA's Suomi NPP satellite highlights the burn scars from the Elkhorn Fire in northern California on Sep. 01, 2020. This false-color image of the firescape made by using the reflective solar bands on Suomi NPP highlights those areas which have been burned. (2020-09-03)

CU scientists create batteries that could make it easier to explore Mars
Electrifying research by Clemson University scientists could lead to the creation of lighter, faster-charging batteries suitable for powering a spacesuit, or even a Mars rover. (2020-08-31)

NOAA/NASA's Suomi NPP satellite shows two views of California's smoky skies
NOAA/NASA's Suomi NPP satellite captured two images that tell the story about the smoke coming off the fires in California. One instrument on the provided a visible image of the smoke, while another analyzed the aerosol content within. The images were captured on August 30, 2020. (2020-08-31)

Secret weapon to stop invasive honeysuckle: Satellites
The University of Cincinnati found that satellite imagery can identify nonnative and invasive Amur honeysuckle, an ornamental shrub introduced from Asia that has spread in forests across much of the United States. (2020-08-31)

NASA's Terra Satellite shows smoky pall over most of California
More than 650 wildfires are blazing in California after unprecedented lightning strikes, storms, and a heatwave that has set new records in the state and NASA's Terra satellite captured the smoke-engulfed state on Aug. 24, 2020. (2020-08-24)

NASA's Suomi NPP satellite highlights California wildfires at night
Striking images of the California wildfires are seen in these nighttime satellite images taken by the NOAA-NASA Suomi NPP satellite on Aug. 20, 2020. At approximately 3:01 am PDT, NOAA-NASA's Suomi NPP was almost directly overhead and imaged the regionusing different bands on its VIIRS (Visible infrared Imaging Radiometer Suite) instrument. (2020-08-21)

Greenland ice sheet shows losses in 2019
The Greenland Ice Sheet recorded a new record loss of mass in 2019. This was the finding of a team of international researchers after evaluating data from satellite observations and modelling data. (2020-08-20)

NASA sees former Tropical Storm Josephine open into a trough
Tropical Storm Josephine weakened on Aug. 16 in the North Atlantic Ocean and satellite imagery showed the storm had become elongated and stretched out into a trough of low pressure a couple of hundred miles north of Puerto Rico. (2020-08-17)

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