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Aditya-L1 Mission to Sun: ISRO's reply to NASA'S Parker Solar Probe - News Nation

Indian Space Research Organisation (ISRO) is set to launch Aditya-L1 mission. It will be the first satellite after NASA's Parker Solar Probe, designed to study the solar corona (the outer layers of the Sun, extending to thousands of km above the ...

A new wave of satellites in orbit: Cheap and tiny, with short lifespans - telegraphherald.com

SAN FRANCISCO — It's one of the most recognizable images in aerospace: Highly specialized workers clad in gowns, hair nets and shoe coverings crawl over a one-of-a-kind satellite the size of a school bus. The months-long process is so delicate that ...

The US Military's Worst Nightmare: Russia Attacking Our Satellites - Yahoo News

The U.S. Military's Worst Nightmare: Russia Attacking Our Satellites. Amid America's national meltdown over the future Space Force, the State Department implied that the militarization of space is well underway. In a recent press briefing, Assistant ...

First satellite to measure Earth's global wind patterns set for launch - The Straits Times

PARIS (AFP) - A satellite designed to measure Earth's global wind patterns is set to be hoisted into orbit on Tuesday (Aug 21) from the Arianespace launch site in French Guiana. The European Space Agency's (ESA) Aeolus mission - named for the guardian ...

5 Isro satellites come to rescue of flood-hit Kerala - Times of India

“We are using the data from these satellites to provide alerts on flooding, areas of inundation during and after rain, and weather forecasts,” the official said. Officials said data is processed at the Decision Support Centre (DSC) at the National ...

When they're not busy, Inuvik's antennas get a makeover - Cabin Radio

At the Inuvik Satellite Station Facility, a group of people hold on to a blanket and toss someone high into the air to scan the horizon. In a unique blending of traditional and modern technologies, this is just one of the scenes depicted in a colourful ...

Hepatobiliary MRI may predict liver cancer recurrence rates - Healio

The presence of a satellite nodule or peritumoral hypointensity in the hepatobiliary phase during preoperative hepatobiliary magnetic resonance imaging correlated with a high rate of recurrence among patients both within and outside Milan criteria who ...

Officials trained on satellite-based monitoring, geo-tagging - The Arunachal Times

ROING, Aug 18: Field functionaries and heads of various departments on Saturday received hands-on training here on satellite-based monitoring and geo-tagging of developmental projects. Addressing the trainees, Lower Dibang Valley Deputy ...

Lockheed Draws $2.9B USAF Contract for Missile Defense - American Machinist

The OPIR satellites will be a missile warning "constellation" that the Air Force intends will be more impervious to weapons systems in development now by China and Russia. Northrop Grumman is developing the OPIR technology. As previously explained by ...

From Stratolaunch to startup: Chuck Beames raises his sights to York satellites - GeekWire

Founded in 2012, York has been working on a spacecraft platform, or bus, that can be adapted for a wide variety of satellite applications. York's S-class satellite can carry instrument payloads weighing as much as 85 kilograms (187 pounds), for a total ...

Satellite images sought - The Hindu

The authorities have requested high resolution cloud-free satellite images to help ascertain landslips and delineate the areas damaged. Relief Commissioner Gangaram Baderia has written to the National Remote Sensing Centre in Hyderabad stating that it ...

Fan y Not Big Enough: Welsh mountain downgraded to hill - Sky News

But satellite measurements have revealed that the drop between Fan y Big and the next peak falls five feet (1.5 metres) short of what is required for mountain status. The Brecon Beacons National Park, in South Wales, announced on Facebook: "It is with ...

Physicists Identify Some of the Oldest Galaxies in the Universe - SciTechDaily

'The distribution of satellite galaxies orbiting a computer-simulated galaxy, as predicted by the Lambda-cold-dark-matter cosmological model. The blue circles surround the brighter satellites, the white circles the ultrafaint satellites (so faint that ...

'Secret Russian space experiments' puts US on ALERT: Unprecedented programme sparks fears - Express.co.uk

US military analysts are increasingly concerned about the abnormal and unprecedented behaviour of Russian military satellites. The US State Department claimed the Russian satellite was exhibiting technological powers that had "never been seen before".

Edmonton students test wildfire-tracking satellite gear on space agency balloon - Yahoo News Canada (blog)

The payload for a wildfire-tracking satellite being constructed by a group of University of Alberta students is getting airborne for the first time aboard a stratospheric air balloon. AlbertaSat — a group of about 50 graduates and undergraduates ...

Satellite Shows Additional EF-0 Tornado Near Pella on July 19th; Governor Writes Letter to President for Disaster Aid - KNIA / KRLS Radio

A review of satellite imagery in the days following the July 19th tornado outbreak showed six additional EF0 tornadoes touched down in central Iowa. According to the National Weather Service, an additional tornado spun up just to the northeast of Pella ...

Intensifying Hurricane Lane examined by GPM satellite - Phys.Org

Heavy rainfall and towering cloud heights were the findings when Hurricane Lane was scanned by the Global Precipitation Measurement mission or GPM core observatory satellite on Aug. 17. Lane strengthened to a Category 2 hurricane on the ...

Top 5 Gerry Anderson space stations & satellites - The Official Gerry Anderson Website

For those of us who wish we were a spaceman, it's important to have a base of operations in space from which we can embark on our exciting adventures, as well as high-tech satellites to keep an eye on things. The Gerry Anderson universe has a multitude ...

AREA 51: Has China's top secret military base been found on Google Earth? - Express.co.uk

Additionally, to the right of the patch of aircrafts is a mysterious square formation with jagged lines running through it. The images of the squares have led people to believe the site was created for satellite calibration. Satellite calibration ...

Major Hurricane Lane to pass south of Hawaii while generating large swells - AccuWeather.com

In the distant footsteps of Hurricane Hector, Major Hurricane Lane is forecast to take a similar path just south of the Big Island of Hawaii next week. Hurricane Hector reached Category 4 status but passed well south of Hawaii during early August. Lane ...

In the context of spaceflight, a satellite is an artificial object which has been intentionally placed into orbit. Such objects are sometimes called artificial satellites to distinguish them from natural satellites such as Earth's Moon.

File:NASA Earth-observing Fleet June 2012.ogvPlay media
NASA's Earth-observing fleet as of June 2012.
A full-size model of the Earth observation satellite ERS 2

In the context of spaceflight, a satellite is an artificial object which has been intentionally placed into orbit. Such objects are sometimes called artificial satellites to distinguish them from natural satellites such as Earth's Moon.

In 1957 the Soviet Union launched the world's first artificial satellite, Sputnik 1. Since then, about 6,600 satellites from more than 40 countries have been launched by ten nations. According to a 2013 estimate, 3,600 remained in orbit. Of those, about 1,000 were operational; the rest have lived out their useful lives and become space debris. Approximately 500 operational satellites are in low-Earth orbit, 50 are in medium-Earth orbit (at 20,000 km), and the rest are in geostationary orbit (at 36,000 km). A few large satellites have been launched in parts and assembled in orbit. Over a dozen space probes have been placed into orbit around other bodies and become artificial satellites to the Moon, Mercury, Venus, Mars, Jupiter, Saturn, a few asteroids, and the Sun.

Satellites are used for many purposes. Common types include military and civilian Earth observation satellites, communications satellites, navigation satellites, weather satellites, and space telescopes. Space stations and human spacecraft in orbit are also satellites. Satellite orbits vary greatly, depending on the purpose of the satellite, and are classified in a number of ways. Well-known (overlapping) classes include low Earth orbit, polar orbit, and geostationary orbit.

Satellites are propelled by rockets to their orbits. Usually the launch vehicle itself is a rocket lifting off from a launch pad on land. Some satellites are launched at sea (from a submarine or a mobile maritime platform) or aboard a plane (see air launch to orbit).

Satellites are usually semi-independent computer-controlled systems. Satellite subsystems attend many tasks, such as power generation, thermal control, telemetry, attitude control and orbit control.