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PTA Signs Saudi Arabia’s Largest Intercity Bus Transport Project Contract

The network is expected to serve more than 6 million passengers annually. SPA
The network is expected to serve more than 6 million passengers annually. SPA
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PTA Signs Saudi Arabia’s Largest Intercity Bus Transport Project Contract

The network is expected to serve more than 6 million passengers annually. SPA
The network is expected to serve more than 6 million passengers annually. SPA

The Public Transport Authority (PTA) has announced the largest project for transporting passengers by buses connecting the Saudi cities, through a transportation network that covers more than 200 cities and governorates.

The network is expected to serve more than 6 million passengers annually, through 76 routes, and with a new fleet of buses equipped with the latest technologies that allow the use of environmentally friendly vehicles.

This announcement came during a ceremony held by the Authority in the presence of the Minister of Transport and Logistics Services, Chairman of the Board of Directors of the Public Transport Authority, Eng. Saleh bin Nasser Al-Jasser, and representatives from the public and private sectors.

Three contracts were signed for intercity transportation projects with the participation of major global alliances aimed at finding and providing advanced quality services for passenger transport by buses between the Kingdom’s cities.

Al-Jasser said that this project is the first foreign investment in intercity transportation services, which opens the way for future investments in this sector.

He praised the role of PTA in transforming challenges into successful investment opportunities that will add the equivalent of SR3.2 billion annually to the gross domestic product.

He stressed that the project will serve several other sectors, including supporting tourism development and contribute to enhancing economic diversification and consolidating partnerships with the private sector.

The National Strategy for Transport and Logistics Services aims to increase the share of using public transportation in the Kingdom from 1% to 15% by 2030.

The project will also contribute to translating one of the most important objectives of the strategy, which establishes the quality of life in cities among its priorities, by reducing the percentage of carbon emissions for transportation to reach 25% by 2030.

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Chinese Rover Helps Find Evidence of Ancient Martian Shoreline

(FILES) This undated handout photograph released on June 11, 2021 by the China National Space Administration (CNSA) shows an image taken by a camera released from China's Zhurong Mars rover showing the rover (L) and the landing platform on the surface of Mars. (Photo by HANDOUT / China National Space Administration (CNSA) / AFP) CLIENTS
(FILES) This undated handout photograph released on June 11, 2021 by the China National Space Administration (CNSA) shows an image taken by a camera released from China's Zhurong Mars rover showing the rover (L) and the landing platform on the surface of Mars. (Photo by HANDOUT / China National Space Administration (CNSA) / AFP) CLIENTS
TT
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Chinese Rover Helps Find Evidence of Ancient Martian Shoreline

(FILES) This undated handout photograph released on June 11, 2021 by the China National Space Administration (CNSA) shows an image taken by a camera released from China's Zhurong Mars rover showing the rover (L) and the landing platform on the surface of Mars. (Photo by HANDOUT / China National Space Administration (CNSA) / AFP) CLIENTS
(FILES) This undated handout photograph released on June 11, 2021 by the China National Space Administration (CNSA) shows an image taken by a camera released from China's Zhurong Mars rover showing the rover (L) and the landing platform on the surface of Mars. (Photo by HANDOUT / China National Space Administration (CNSA) / AFP) CLIENTS

With the assistance of China's Zhurong rover, scientists have gathered fresh evidence that Mars was home to an ocean billions of years ago - a far cry from the dry and desolate world it is today.
Scientists said on Thursday that data obtained by Zhurong, which landed in the northern lowlands of Mars in 2021, and by orbiting spacecraft indicated the presence of geological features indicative of an ancient coastline. The rover analyzed rock on the Martian surface in a location called Utopia Planitia, a large plain in the planet's northern hemisphere.
The researchers said data from China's Tianwen-1 Orbiter, NASA's Mars Reconnaissance Orbiter and the robotic six-wheeled rover indicated the existence of a water ocean during a period when Mars might already have become cold and dry and lost much of its atmosphere.
They described surface features such as troughs, sediment channels and mud volcano formations indicative of a coastline, with evidence of both shallow and deeper marine environments, Reuters reported.
"We estimate the flooding of the Utopia Planitia on Mars was approximately 3.68 billion years ago. The ocean surface was likely frozen in a geologically short period," said Hong Kong Polytechnic University planetary scientist Bo Wu, lead author of the study published in the journal Scientific Reports.
The ocean appears to have disappeared by approximately 3.42 billion years ago, the researchers said.
"The water was heavily silted, forming the layering structure of the deposits," Hong Kong Polytechnic University planetary scientist and study co-author Sergey Krasilnikov added.
Like Earth and our solar system's other planets, Mars formed about 4.5 billion years ago. At the time the ocean apparently existed, it might already have begun its transition away from being a hospitable planet.
"The presence of an ancient ocean on Mars has been proposed and studied for several decades, yet significant uncertainty remains," Wu said. "These findings not only provide further evidence to support the theory of a Martian ocean but also present, for the first time, a discussion on its probable evolutionary scenario."
Water is seen as a key ingredient for life, and the past presence of an ocean raises the prospect that Mars at least at one time was capable of harboring microbial life.
"At the beginning of Mars' history, when it probably had a thick, warm atmosphere, microbial life was much more likely," Krasilnikov said.
The solar-powered Zhurong, named after a mythical Chinese god of fire, began its work using six scientific instruments on the Martian surface in May 2021 and went into hibernation in May 2022, likely met with excessive accumulation of sand and dust, according to its mission designer. It exceeded its original mission time span of three months.
Researchers have sought to better understand what happened to all the water that once was present on the Martian surface. Another study, published in August and based on seismic data obtained by NASA's robotic InSight lander, indicated that an immense reservoir of liquid water may reside deep under the surface within fractured igneous rocks.