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India has announced plans to build its own space station by 2035, and carry out a human mission to the moon five years later. The country has ramped up its space program in recent years, becoming the first in the world to successfully land a spacecraft near the lunar south pole just this past August. Shortly after, in September, it launched a probe to study the sun. But, human spaceflight is new territory. Its upcoming Gaganyaan mission will be the first time India has sent astronauts to space using its own capabilities, and it’s now gearing up to start testing the vehicles that will support a human crew.
#ISRO TO SEND HUMANS TO THE MOON BY 2040!!! 🌖@PMOIndia held a meeting with DoS today where a series of Chandrayaan missions, a Venus orbiter mission and a Mars lander mission were officially announced!
He also directed ISRO to set up a space station (Bharatiya Space Station)… pic.twitter.com/3cxonsYvVW
— ISRO Spaceflight (@ISROSpaceflight) October 17, 2023
In a meeting led by India’s Prime Minister Narendra Modi, the country’s space agency laid out a plan to achieve its first crewed launch in 2025 ahead of its eventual moon mission. It has a demonstration flight of its Crew Escape System Test Vehicle currently set for Oct 21, and will later send its launch vehicle on three test missions without humans on board. All in all, India is planning around 20 tests in the leadup to sending astronauts to space.
The country says it’s building a new launch pad and a next generation launch vehicle to make its admittedly “ambitious” other goals possible. In addition to establishing the Bharatiya Antariksha Station — or the Indian Space Station — by 2035 and launching a crewed mission to the moon by 2040, India also has its sights on interplanetary missions. Modi expressed interest in the development of a Venus orbiter and a Mars lander, too.
This article originally appeared on Engadget at https://www.engadget.com/india-wants-to-build-its-own-space-station-and-send-astronauts-to-the-moon-by-2040-191533155.html?src=rss
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Researchers have made significant strides in improving earthquake early warning systems (EEW) by utilizing disused fiber optic cables originally intended for telecommunications to monitor offshore seismic activity. The scarcity of offshore seismic stations in densely populated coastal regions, which are often prone to earthquakes, has been a challenge for EEW systems.
In a study published in The Seismic Record, Jiuxun Yin, a former researcher at Caltech, and his colleagues demonstrated the potential of repurposing these undersea fiber optic cables.
The technique they employed, known as Distributed Acoustic Sensing (DAS), leverages the imperfections within extended optical fibers, effectively converting them into thousands of microscopic seismic sensors. They collected seismic data from 8,960 channels along a 50-kilometer undersea telecommunications cable connecting the United States and Chile, estimating the magnitudes of both offshore and onshore earthquakes that occurred during the research period.
Mapping the Study Area in Chile – Red Curve: DAS Array / Black Dots: Earthquakes / Dark Red Triangles: Permanent Seismic Stations 📡 (Image: TSR doi.org/10.1785/0320230018)
Jiuxun Yin noted that the offshore location of the DAS array significantly improved the speed of earthquake detection, eliminating the need to wait for seismic waves to reach land-based stations. This technology holds promise for regions like Chile, which faces a high seismic risk due to its active subduction zones and history of significant earthquakes. Offshore EEW systems could play a vital role in safeguarding lives and property in such areas.
The research team used deep learning artificial intelligence models to identify earthquake waves in the DAS data efficiently. Yin emphasized the importance of gathering more data, especially from larger magnitude earthquakes, to develop and test EEW algorithms effectively. They also stressed the need to understand how DAS instruments respond before implementing a real-time EEW system.
One of the significant advantages of this approach is that it can be implemented without affecting telecommunications data transportation, thanks to technological advancements. There are over 1,500 cable landing stations worldwide, offering exciting research opportunities for the future. Jiuxun Yin expressed a desire for collaboration with cable owners, environmental agencies, and policymakers to expand the use of DAS-based EEW systems for the benefit of coastal communities.
The research showcases an innovative and cost-effective solution to enhance earthquake early warning capabilities in regions prone to seismic activity, potentially saving lives and reducing damage in densely populated coastal areas.
Disused Fiber Optic Cables Repurposed For Offshore Earthquake Early Warning
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