//www.koonmotors.com/news/space_time/satellites/ Satellites. Read science articles on every type of satellite, from the new infrared satellite to micro-satellites. Free satellite pictures too. en-us Sun, 10 Sep 2023 22:50:08 EDT Sun, 10 Sep 2023 22:50:08 EDT 60 //www.koonmotors.com/images/scidaily-logo-rss.png//www.koonmotors.com/news/space_time/satellites/ For more science news, visit ScienceDaily. //www.koonmotors.com/releases/2023/07/230728170641.htm Scientists have trained a machine learning model in outer space, on board a satellite. This achievement could revolutionize the capabilities of remote-sensing satellites by enabling real-time monitoring and decision making for a range of applications. Fri, 28 Jul 2023 17:06:41 EDT //www.koonmotors.com/releases/2023/07/230728170641.htm //www.koonmotors.com/releases/2023/07/230711133256.htm Researchers have tested the software of three satellites. And they found many standard security mechanisms missing. Tue, 11 Jul 2023 13:32:56 EDT //www.koonmotors.com/releases/2023/07/230711133256.htm //www.koonmotors.com/releases/2023/06/230615105314.htm Extreme space weather threatens vital satellites orbiting the Earth, including the Global Navigation Satellite Systems (GNSS) which pass through the heart of the outer radiation belt. New research has now determined a series of benchmarks for the likely severity of extreme space weather events in GPS orbit. Thu, 15 Jun 2023 10:53:14 EDT //www.koonmotors.com/releases/2023/06/230615105314.htm //www.koonmotors.com/releases/2023/02/230221132112.htm On-chip distributed radiation sensors and current-sharing techniques can be used to reduce the impact of radiation on the radio and power consumption of small satellites, respectively. New findings can be used to make small satellites more robust, which can increase the connectivity of networks across the globe. Tue, 21 Feb 2023 13:21:12 EST //www.koonmotors.com/releases/2023/02/230221132112.htm //www.koonmotors.com/releases/2023/01/230123200324.htm Space weather can interfere with spaceflight and the operation of satellites, but the phenomenon is very difficult to study on Earth because of the difference in gravity. Researchers effectively reproduced the type of gravity that exists on or near stars and other planets inside of a glass sphere measuring 3 centimeters in diameter, or about 1.2 inches. The achievement could help scientists overcome the limiting role of gravity in experiments that are intended to model conditions in stars and other planets. Mon, 23 Jan 2023 20:03:24 EST //www.koonmotors.com/releases/2023/01/230123200324.htm //www.koonmotors.com/releases/2022/12/221220113029.htm ESA's novel Aeolus satellite reliably measures wind speed also in higher air layers and thus in a region of the atmosphere where other direct global wind measurements are relatively sparse. This is the result of a study for which data from the satellite were compared with wind observations from stratospheric balloons. Stratospheric balloons would provide highly accurate data on the horizontal wind speed and are therefore also suitable for the validation of future satellite missions. Tue, 20 Dec 2022 11:30:29 EST //www.koonmotors.com/releases/2022/12/221220113029.htm //www.koonmotors.com/releases/2022/09/220914102259.htm Researchers present the most precise test yet of the weak equivalence principle, a key component of the theory of general relativity. The report describes the final results from the MICROSCOPE mission, which tested the principle by measuring accelerations of free-falling objects in a satellite orbiting Earth. Wed, 14 Sep 2022 10:22:59 EDT //www.koonmotors.com/releases/2022/09/220914102259.htm //www.koonmotors.com/releases/2022/08/220818102732.htm Researchers report an experimental demonstration of a space-to-ground quantum key distribution (QKD) network using a compact QKD terminal aboard the Chinese Space Lab Tiangong-2 and four ground stations. The demonstration represents an important step toward practical QKD based on constellations of small satellites, a setup considered one of the most promising routes to creating a global quantum communication network. Thu, 18 Aug 2022 10:27:32 EDT //www.koonmotors.com/releases/2022/08/220818102732.htm //www.koonmotors.com/releases/2022/08/220803162659.htm Students have completed a comprehensive brightness study to characterize mega-constellation satellites cluttering the skies. Wed, 03 Aug 2022 16:26:59 EDT //www.koonmotors.com/releases/2022/08/220803162659.htm //www.koonmotors.com/releases/2022/07/220715105747.htm Changes in atmospheric density after sunset can cause hot pockets of gas called 'plasma bubbles' to form over the Earth's equator, resulting in communication disruptions between satellites and the Earth. New AI models are now helping scientists to predict plasma bubble events and create a forecast. Fri, 15 Jul 2022 10:57:47 EDT //www.koonmotors.com/releases/2022/07/220715105747.htm //www.koonmotors.com/releases/2022/06/220617165652.htm The European Gaia space mission has produced an unprecedented amount of new, improved, and detailed data for almost two billion objects in the Milky Way galaxy and the surrounding cosmos. The Gaia Data Release 3 on Monday revolutionizes our knowledge of the Solar System and the Milky Way and its satellite galaxies. Fri, 17 Jun 2022 16:56:52 EDT //www.koonmotors.com/releases/2022/06/220617165652.htm //www.koonmotors.com/releases/2022/02/220202111841.htm Geospatial scientists have found a way to detect plastic waste on remote beaches that are not visible in conventional satellite images, bringing us closer to global monitoring options. Wed, 02 Feb 2022 11:18:41 EST //www.koonmotors.com/releases/2022/02/220202111841.htm //www.koonmotors.com/releases/2022/01/220124115032.htm 航空工程师们已经开发出一种基于“增大化现实”技术的使用ticulated solar panels to steer the satellite during aerobraking, reducing the number of passes needed, resulting in potential savings in propellant, time, and money. Mon, 24 Jan 2022 11:50:32 EST //www.koonmotors.com/releases/2022/01/220124115032.htm //www.koonmotors.com/releases/2021/07/210722112950.htm New high-resolution observations clearly show a moon-forming region around exoplanet PDS 70c. The observations have allowed astronomers to determine the ring-shaped region's size and mass for the first time. Thu, 22 Jul 2021 11:29:50 EDT //www.koonmotors.com/releases/2021/07/210722112950.htm //www.koonmotors.com/releases/2021/07/210706133121.htm Using sophisticated simulations of the whole of the Local Group of galaxies, including the Milky Way, the Andromeda galaxy and their respective satellite galaxies, researchers have shown that the satellites not only can retain their gas but can also experience many new episodes of star formation just after passing close to the pericenter of their parent galaxy. Tue, 06 Jul 2021 13:31:21 EDT //www.koonmotors.com/releases/2021/07/210706133121.htm //www.koonmotors.com/releases/2021/06/210625155638.htm Scientists have developed an innovative way to use NASA satellite data to track the movement of tiny pieces of plastic in the ocean. Fri, 25 Jun 2021 15:56:38 EDT //www.koonmotors.com/releases/2021/06/210625155638.htm //www.koonmotors.com/releases/2021/04/210423085707.htm New research has revealed how radar satellites can improve the ability to detect, monitor, prepare for and withstand natural disasters in Australia including bushfires, floods and earthquakes. Fri, 23 Apr 2021 08:57:07 EDT //www.koonmotors.com/releases/2021/04/210423085707.htm //www.koonmotors.com/releases/2021/03/210329122817.htm Scientists reported new research results today suggesting that artificial objects in orbit around the Earth are brightening night skies on our planet significantly more than previously understood. Mon, 29 Mar 2021 12:28:17 EDT //www.koonmotors.com/releases/2021/03/210329122817.htm //www.koonmotors.com/releases/2021/03/210302130705.htm Analysis of observations made by satellites in 2014 has revealed a long-lasting 'space hurricane' -- a swirling mass of plasma several hundred kilometers above the North Pole, raining electrons instead of water. Tue, 02 Mar 2021 13:07:05 EST //www.koonmotors.com/releases/2021/03/210302130705.htm //www.koonmotors.com/releases/2020/12/201208090000.htm Observations 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. Tue, 08 Dec 2020 09:00:00 EST //www.koonmotors.com/releases/2020/12/201208090000.htm //www.koonmotors.com/releases/2020/11/201112134633.htm 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 could offer an ideal solution. Thu, 12 Nov 2020 13:46:33 EST //www.koonmotors.com/releases/2020/11/201112134633.htm //www.koonmotors.com/releases/2020/11/201105183751.htm Quick flashes of light reflecting from satellites and debris in Earth's orbit are extremely common, according to new findings 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. Thu, 05 Nov 2020 18:37:51 EST //www.koonmotors.com/releases/2020/11/201105183751.htm //www.koonmotors.com/releases/2020/11/201103104725.htm A two-volume atlas presents and explains the impact sites of meteorites and asteroids worldwide. Tue, 03 Nov 2020 10:47:25 EST //www.koonmotors.com/releases/2020/11/201103104725.htm //www.koonmotors.com/releases/2020/10/201029135503.htm When satellites take pictures of Earth at night, how much of the light that they see comes from streetlights? A team of scientists have answered this question for the first time using the example of the U.S. city of Tucson, thanks to 'smart city' lighting technology that allows dimming. The result: only around 20 percent of the light in the Tucson satellite images comes from streetlights. Thu, 29 Oct 2020 13:55:03 EDT //www.koonmotors.com/releases/2020/10/201029135503.htm //www.koonmotors.com/releases/2020/10/201008124432.htm Using radio telescopes observing distant stars, scientists have connected optical atomic clocks on different continents. Thu, 08 Oct 2020 12:44:32 EDT //www.koonmotors.com/releases/2020/10/201008124432.htm //www.koonmotors.com/releases/2020/09/200924135332.htm 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. Thu, 24 Sep 2020 13:53:32 EDT //www.koonmotors.com/releases/2020/09/200924135332.htm //www.koonmotors.com/releases/2020/08/200831154405.htm Researchers found that satellite imagery can identify non-native and invasive Amur honeysuckle, an ornamental shrub introduced from Asia that has spread in forests across much of the United States. Mon, 31 Aug 2020 15:44:05 EDT //www.koonmotors.com/releases/2020/08/200831154405.htm //www.koonmotors.com/releases/2020/08/200807102339.htm Image data reanalysis has revealed that ancient tectonic troughs are concentrically distributed across almost the entire surface of Jupiter's moon Ganymede. Computer simulation results suggest that this giant crater could have resulted from the impact of an asteroid with a 150-kilometer radius. If so, this the largest impact structure identified in the solar system so far. Fri, 07 Aug 2020 10:23:39 EDT //www.koonmotors.com/releases/2020/08/200807102339.htm //www.koonmotors.com/releases/2020/08/200804111457.htm For a long time, researchers have believed that there is not much of interest going on in the Sun during the passive period, therefore not worth studying. Now this assumption is showed to be false. This is the first time that astronomers are systematically studying the phenomena of the solar minimum. Tue, 04 Aug 2020 11:14:57 EDT //www.koonmotors.com/releases/2020/08/200804111457.htm //www.koonmotors.com/releases/2020/06/200617091017.htm Satellites are almost always illuminated by the sun, apart from short transitions to Earth's shadow. The light that a satellite reflects can help reveal the solution to a structural malfunction. Wed, 17 Jun 2020 09:10:17 EDT //www.koonmotors.com/releases/2020/06/200617091017.htm //www.koonmotors.com/releases/2020/06/200610094043.htm Measuring the speed of coronal mass ejections (CMEs) as they erupt from the sun, in addition to their size, found to be crucial in providing accurate early warnings that keep astronauts and technology safe. Wed, 10 Jun 2020 09:40:43 EDT //www.koonmotors.com/releases/2020/06/200610094043.htm //www.koonmotors.com/releases/2020/05/200526091401.htm Aging satellites and space debris crowd low-Earth orbit, and launching new satellites adds to the collision risk. The most effective way to solve the space junk problem, according to a new study, is not to capture debris or deorbit old satellites: it's an international agreement to charge operators 'orbital-use fees' for every satellite put into orbit. Tue, 26 May 2020 09:14:01 EDT //www.koonmotors.com/releases/2020/05/200526091401.htm //www.koonmotors.com/releases/2020/04/200406140110.htm Just like we orbit the sun and the moon orbits us, the Milky Way has satellite galaxies with their own satellites. Drawing from data on those galactic neighbors, a new model suggests the Milky Way should have an additional 100 or so very faint satellite galaxies awaiting discovery. Mon, 06 Apr 2020 14:01:10 EDT //www.koonmotors.com/releases/2020/04/200406140110.htm //www.koonmotors.com/releases/2020/03/200309110250.htm Numerical simulations showed that the temperature gradient in the disk of gas around a young gas giant planet could play a critical role in the development of a satellite system dominated by a single large moon, similar to Titan around Saturn. Researchers found that dust in the circumplanetary disk can create a 'safety zone,' which keeps the moon from falling into the planet as the system evolves. Mon, 09 Mar 2020 11:02:50 EDT //www.koonmotors.com/releases/2020/03/200309110250.htm //www.koonmotors.com/releases/2020/03/200305132049.htm Astronomers have recently raised concerns about the impact of satellite mega-constellations on scientific research. To better understand the effect these constellations could have on astronomical observations, ESO commissioned a scientific study of their impact, focusing on observations with ESO telescopes in the visible and infrared but also considering other observatories. Thu, 05 Mar 2020 13:20:49 EST //www.koonmotors.com/releases/2020/03/200305132049.htm //www.koonmotors.com/releases/2020/03/200302153600.htm A new machine-learning computer model accurately predicts damaging radiation storms caused by the Van Allen belts two days prior to the storm, the most advanced notice to date, according to a new article. Mon, 02 Mar 2020 15:36:00 EST //www.koonmotors.com/releases/2020/03/200302153600.htm //www.koonmotors.com/releases/2020/02/200226130529.htm Many satellites are in space to take photos. But a vibrating satellite, like a camera in shaky hands, can't get a sharp image. Pointing it at a precise location to take a photo or perform another task, is another important function requiring accuracy. Wed, 26 Feb 2020 13:05:29 EST //www.koonmotors.com/releases/2020/02/200226130529.htm //www.koonmotors.com/releases/2020/01/200110073729.htm Scientists have discovered the right combination of factors to make a four-satellite constellation possible, which could drive advances in telecommunication, navigation and remote sensing. Fri, 10 Jan 2020 07:37:29 EST //www.koonmotors.com/releases/2020/01/200110073729.htm //www.koonmotors.com/releases/2019/12/191213115410.htm JAXA and NASA satellite observations show where killer electrons are generated in the Van Allen radiation belts surrounding Earth. Fri, 13 Dec 2019 11:54:10 EST //www.koonmotors.com/releases/2019/12/191213115410.htm //www.koonmotors.com/releases/2019/12/191210111645.htm Environmental scientists are always in search of new tools that can better characterize the Earth's surface. Researchers have now reported that Himawari-8, a new-generation geostationary satellite, was able to acquire cloud-free observations every 4 days and capture the seasonal changes of vegetation more accurately than before. Tue, 10 Dec 2019 11:16:45 EST //www.koonmotors.com/releases/2019/12/191210111645.htm //www.koonmotors.com/releases/2019/11/191126155502.htm Scientists are developing robotic networks that can work independently but collaboratively on a common task. The goal? To make smart satellites that can repair other satellites in space. Tue, 26 Nov 2019 15:55:02 EST //www.koonmotors.com/releases/2019/11/191126155502.htm //www.koonmotors.com/releases/2019/11/191104083320.htm Satellites now play a key role in monitoring carbon levels in the oceans, but we are only just beginning to understand their full potential. Mon, 04 Nov 2019 08:33:20 EST //www.koonmotors.com/releases/2019/11/191104083320.htm //www.koonmotors.com/releases/2019/10/191010113203.htm A team of astronomers has discovered that several of the small -- or 'dwarf' -- galaxies orbiting the Milky Way were likely stolen from the Large Magellanic Cloud, including several ultrafaint dwarfs, but also relatively bright and well-known satellite galaxies, such as Carina and Fornax. Thu, 10 Oct 2019 11:32:03 EDT //www.koonmotors.com/releases/2019/10/191010113203.htm //www.koonmotors.com/releases/2019/07/190729111318.htm A new study by physicists mimicked solar winds in the lab, confirming how they develop and providing an Earth-bound model for the future study of solar physics. Mon, 29 Jul 2019 11:13:18 EDT //www.koonmotors.com/releases/2019/07/190729111318.htm //www.koonmotors.com/releases/2019/07/190712174054.htm Researchers have identified a critical hidden challenge about replacing the broken satellites in megaconstellations and proposed a unique solution with inventory control methods. Fri, 12 Jul 2019 17:40:54 EDT //www.koonmotors.com/releases/2019/07/190712174054.htm //www.koonmotors.com/releases/2019/07/190709141305.htm An early warning system to identify at-risk structures using Synthetic Aperture Radar (SAR) has been developed. The system could be applied to infrastructure projects including roads, railways and building developments at lower cost and greater accuracy than existing techniques. Tue, 09 Jul 2019 14:13:05 EDT //www.koonmotors.com/releases/2019/07/190709141305.htm //www.koonmotors.com/releases/2019/06/190625093312.htm Beyond the orbit of the planet Neptune, there are a multitude of icy and rocky small bodies, smaller than planets but larger than comets. These likely formed at the same time as the Solar System, and understanding their origin could provide important clues as to how the entire Solar System originated. Using sophisticated computer simulations and observations of TNOs, astronomers have shown how these so-called trans-Neptunian Objects (or TNOs) may have formed. Tue, 25 Jun 2019 09:33:12 EDT //www.koonmotors.com/releases/2019/06/190625093312.htm //www.koonmotors.com/releases/2019/04/190423114031.htm Researchers find that 'speed bumps' in space, which can slow down satellites orbiting closer to Earth, are more complex than originally thought. Tue, 23 Apr 2019 11:40:31 EDT //www.koonmotors.com/releases/2019/04/190423114031.htm //www.koonmotors.com/releases/2019/04/190409162809.htm A new, first-of-its-kind space weather model reliably predicts space storms of high-energy particles that are harmful to many satellites and spacecraft orbiting in the Earth's outer radiation belt. Tue, 09 Apr 2019 16:28:09 EDT //www.koonmotors.com/releases/2019/04/190409162809.htm //www.koonmotors.com/releases/2019/03/190320102007.htm A team of scientists has been using the latest space technology, combined with ground measurements, to assess the health of one of the nation's most important sources of underground water, a large aquifer system located in California's San Joaquin Valley. Wed, 20 Mar 2019 10:20:07 EDT //www.koonmotors.com/releases/2019/03/190320102007.htm //www.koonmotors.com/releases/2019/02/190221095033.htm After several years of analysis, a team of planetary scientists using NASA's Hubble Space Telescope has at last come up with an explanation for a mysterious moon around Neptune that they discovered with Hubble in 2013. Thu, 21 Feb 2019 09:50:33 EST //www.koonmotors.com/releases/2019/02/190221095033.htm //www.koonmotors.com/releases/2019/01/190129124901.htm The 4,300 kilometer Mekong River is a lifeline for South-East Asia. If this mighty river system bursts its banks, flooding can affect the lives and livelihoods of millions of people. A new method makes it possible to monitor complex river basins using satellite data only. Tue, 29 Jan 2019 12:49:01 EST //www.koonmotors.com/releases/2019/01/190129124901.htm //www.koonmotors.com/releases/2019/01/190109170641.htm Long ago in a galaxy far, far away, fewer galaxies were born than expected -- and that could create new questions for galaxy physics, according to a new study. Wed, 09 Jan 2019 17:06:41 EST //www.koonmotors.com/releases/2019/01/190109170641.htm //www.koonmotors.com/releases/2018/10/181003142931.htm On the hunt for distant worlds, researchers have identified an exomoon candidate around the transiting exoplanet Kepler-1625b that indicates the presence of a previously unknown gas-giant moon. Wed, 03 Oct 2018 14:29:31 EDT //www.koonmotors.com/releases/2018/10/181003142931.htm //www.koonmotors.com/releases/2018/09/180904103249.htm Satellites are more likely to be at risk from high-speed solar wind than a major geomagnetic storm according to a new study. Tue, 04 Sep 2018 10:32:49 EDT //www.koonmotors.com/releases/2018/09/180904103249.htm //www.koonmotors.com/releases/2018/08/180809093424.htm A Japan-based research team led by Kanazawa University equipped the Arase satellite with sensors to study the convoluted interactions between high-energy particles in the inner magnetosphere and the Earth's electric and magnetic field. They have collected their first set of data from the satellite and from ground-based sensors, which they will soon analyze. Their approach promises to provide better predictions of harmful bursts of high-energy particles from the magnetosphere. Thu, 09 Aug 2018 09:34:24 EDT //www.koonmotors.com/releases/2018/08/180809093424.htm //www.koonmotors.com/releases/2018/06/180620150053.htm Researchers have helped to find the last reservoir of ordinary matter hiding in the universe. Wed, 20 Jun 2018 15:00:53 EDT //www.koonmotors.com/releases/2018/06/180620150053.htm //www.koonmotors.com/releases/2018/06/180606122638.htm 几家大型电信公司的公关oposed plans to provide global broadband services by launching hundreds and even thousands of satellites into orbit. Although broadband for everyone sounds like a great idea, it also carries great financial risk, resulting in bankruptcy for some who've tried it. Recent research suggests a more cost-effective strategy using regional coverage and staged deployment. Wed, 06 Jun 2018 12:26:38 EDT //www.koonmotors.com/releases/2018/06/180606122638.htm //www.koonmotors.com/releases/2018/06/180605112113.htm By using satellite data from different major land-based ecosystems around the globe, researchers have found that the photosynthesis glow is the same across all vegetation, no matter the location. This first-of-its-kind global analysis could have significance in providing more accurate data for scientists working to model carbon cycle and eventually help better project climate change. Tue, 05 Jun 2018 11:21:13 EDT //www.koonmotors.com/releases/2018/06/180605112113.htm //www.koonmotors.com/releases/2018/05/180514095512.htm For the first time a frequency reference based on molecular iodine was successfully demonstrated in space! What sounds a bit like science fiction is an important step towards laser interferometric distance measurements between satellites as well as for future global navigation satellite systems based on optical technologies. The frequency reference tests were carried out on May 13 on board the sounding rocket TEXUS54. Mon, 14 May 2018 09:55:12 EDT //www.koonmotors.com/releases/2018/05/180514095512.htm