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Red Planet: Mars to Come Closest to Earth in 15 Years Next Month

On July 27, Mars will be in perihelic opposition, Express.co.uk reported on Sunday

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Mars
Red Planet: Mars to Come Closest to Earth in 15 Years Next Month. Pixabay

Star gazers could have a good view of the Red Planet next month as Mars is set to come to the closest point to Earth since 2003 when it reaches opposition with the Sun in late July.

This year, Mars opposition will occur on July 27, according to NASA.

During opposition, Mars is especially photogenic because it can be seen fully illuminated by the Sun as viewed from Earth.

“Since Mars and the Sun appear on opposite sides of the sky, we say that Mars is in ‘opposition’,” NASA explained.

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Every 15 or 17 years, opposition occurs within a few weeks of Mars’ perihelion – the point in its orbit when it is closest to the Sun.

“An opposition can occur anywhere along Mars’ orbit. When it happens while the Red Planet is closest to the Sun (called ‘perihelic opposition’), Mars is particularly close to Earth,” NASA said.

On July 27, Mars will be in perihelic opposition, Express.co.uk reported on Sunday.

But some perihelic oppositions bring Earth and Mars closer together than others, the US space agency said.

The 2003 opposition was the closest approach in almost 60,000 years, it added. (IANS)

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China Launches Gaofen-7, New Earth Observation Satellite

Along with Gaofen-7, three other commercial and scientific experiment satellites, including one developed for Sudan, were also launched into space

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China, Gaofen 7, Earth
The satellite and carrier rocket were developed by the China Academy of Space Technology and the Shanghai Academy of Spaceflight Technology under the China Aerospace Science and Technology Corporation. Pixabay

China on Sunday launched Gaofen-7, a new Earth observation satellite, which will play a major role in land surveying and mapping, urban and rural construction and statistical investigation, according to the China National Space Administration (CNSA).

The Gaofen-7 was China’s first civil-use optical transmission three-dimensional surveying and mapping satellite that reaches the sub-metre level, Xinhua reported.

The satellite and carrier rocket were developed by the China Academy of Space Technology and the Shanghai Academy of Spaceflight Technology under the China Aerospace Science and Technology Corporation.

Along with Gaofen-7, three other commercial and scientific experiment satellites, including one developed for Sudan, were also launched into space.

China, Gaofen 7, Earth
The Gaofen-7 was China’s first civil-use optical transmission three-dimensional surveying and mapping satellite that reaches the sub-metre level, Xinhua reported. Pixabay

The development of the Gaofen-7 has achieved a breakthrough in sub-meter level 3D mapping camera technology, meeting the highest mapping accuracy requirement among the Gaofen series Earth observation satellites, according to CNSA.

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It can obtain high-resolution optical 3D observation data and high-precision laser altimetry data and can realise 1:10,000 scale satellite 3D mapping for civil use. (IANS)