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NASA Jet Propulsion Laboratory (JPL)-led Team CoStar is set to participate in the Subterranean Challenge finals that are scheduled to be held this week. The challenge involves a demonstration of multi-robot autonomy in a series of tests in extreme environments. According to NASA JPL, Team CoSTAR will be among the eight teams that will be competing in the finale. The teams will use dozens of robots to traverse through a series of complex underground scenarios. The eight teams and robots are from more than 30 institutions and will be competing for prize money of $2 million (roughly Rs. 14.7 crores)

The teams are competing in a former Kentucky limestone mine from September 21 to September 24 to participate in the challenge. The challenge is sponsored by the Defense Advanced Research Projects Agency (DARPA).

In a statement shared by NASA JPL, the objective of the challenge was described as “developing autonomous robotic solutions for first responders in underground environments where GPS and direct communications are unavailable.”

The team from NASA JPL will comprise 60 members. This includes engineers from California Institute of Technology (Caltech), Massachusetts Institute of Technology, Korea Advanced Institute of Science and Technology, Luleå University of Technology, and other industry partners, the note said.

Specifying the scope of the team, the statement added, “The JPL-led Team CoSTAR (Collaborative SubTerranean Autonomous Robots) will demonstrate their collection of driving, walking, and flying robots that could one day be used to explore extreme terrains on the surface as well as inside the caves and lava tubes on other worlds without human assistance.”

Team CoSTAR, in particular, will be “developing AI and autonomy software solutions for physical robots that can navigate challenging and previously unseen environments.” 

In addition to this, the note added that the technologies developed for the challenge and those focussed on extreme-environment exploration on Earth also have direct applications in the realm of space exploration.

With regard to the challenge, the statement added that Team CoSTAR “relies on a diverse array of robots to fulfil the mission goals.” The robot scouts will be sent to first explore the environment, and then a “subset of robots” will be chosen to satisfy the overall mission goals.

Speaking about the Subterranean Challenge, Joel Burdick, a Caltech professor and JPL research scientist, said, “I am excited to see how our very diverse robot team will perform.” Burdick leads the Caltech campus section of Team CoSTAR.

As per the statement, the team of robots must operate autonomously or with limited radio contact with one human supervisor. The mission must be completed in one hour. The points will be assigned based on how many objects they can reach, identify, and locate.

This week on Orbital, the Gadgets 360 podcast, we discuss iPhone 13, new iPad and iPad mini, and Apple Watch Series 7 — and what they mean to the Indian market. Orbital is available on Apple Podcasts, Google Podcasts, Spotify, Amazon Music and wherever you get your podcasts.

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Japan Launches Final H-2A Rocket with GOSAT-GW Satellite to Monitor Climate and Oceans

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July 1, 2025

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Japan Launches Final H-2A Rocket with GOSAT-GW Satellite to Monitor Climate and Oceans

Japan launched a satellite which is a dual purpose, for monitoring greenhouse gases and sea temperature. On Saturday, June 28, 2025, the Japan Aerospace Exploration Agency (JAXA) held its 50th and final launch of the H-2A rocket, launching the GOSAT-GW satellite of dual purpose to space. This mission lifted off from Ypshinobu Launch Complex (LP-1) in Japan at Tenegashima Space Centre at 10:03 p.m. IST. These satellites have been sent by Japan to observe the changes in water cycles and greenhouse gases.

JAXA’s Dual Purpose Satellite Launch

According to JAXA, the Greenhouse Gas and Water Cycle Observation Satellite (GOSA-GW) is a very recent and significant effort of Japan to know about the effect of greenhouse gases and the changes in the cycle of rain. GOSAT-GW has joined the orbit of Earth with GCOM-W2, which is its predecessor, and was launched in 2012, known as SHIZUKU, whereas GOSAT-1, launched in 2009, is known as IBUKI. It is equipped with two main instruments.

More About GOSAT-GW

GOSAT-GW is equipped with two main instruments, the first is called the Advanced Microwave Radiometer (AMSR), and the other is known as the Greenhouse Gases Observation Sensor (TANSO). The former one will measure water cycles and sea surface temperature fluctuations, while the latter one is for monitoring components such as carbon dioxide in Earth’s atmosphere for measuring climate change.

H-2A rocket of Japan has been capable of launching payloads into the geostationary orbit around Earth and also orbiting the Moon. JAXA also launched the Akatsuki spacecraft for studying Venus in 2010; however, the spacecraft failed to enter the orbit of Venus properly.

Japan’s Successful Launch Operations

JAXA launched H-2A for the first time in 2001. With its 25 years in operation, the rocket experienced only a single failure, giving the spacecraft a 98% success rate. After 50 missions, the launch vehicle is now being retired to make way for the H3 rocket of Japan, offering comparable performance at a very reasonable cost.

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SpaceX Launches 53 Starlink Satellites in One Day, Crossing 7,900 Active Units

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July 1, 2025

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SpaceX Launches 53 Starlink Satellites in One Day, Crossing 7,900 Active Units

On June 28, 2025, two Falcon 9 rockets carrying the internet satellite broadband connection lifted off at 12:26 a.m. and 1:13 p.m. EDT. The first one was launched from Space Launch Complex 40 at Cape Canaveral Space Force Station, Florida, and another from Space Launch Complex 4 East at Vandenberg Space Force Base, California. The new addons for megaconsellation of SpaceX (Group 10-34 and Group 15-7) reached low orbit Earth about 9 minutes after leaving the ground and were deployed after an hour.

According to As per NASA, in the intervening time, the first stage of the Falcon rockets (boosters B1092 and B1088) flew back to the droneships. The landing was on “A Shortfall of Gravitas, “ completing the fifth flight of the boosters. The stage touched down on “Of Course I Still Love You”, with its eighth flight to space and back, in the Pacific Ocean.

The launch at early morning carries 27 Starlink Satellites and the afternoon liftoff lofted 26 more of the relay satellites, vasting the network of SpaceX to more than 7,900 active units, said by satellite tracker Jonathan Mc Dowell.

Broader Deployment Context

The launch in the morning was delayed earlier that day because of the severe weather alerts at Florida, but flew in the near perfect conditions at the visibility of 10 miles. Throughout 2025, SpaceX heald 42 Falcon 9 missions with 28 Starlink launched by June. by mid-June the batch of 26 satellites launched from Vandenberg (Booster B1081’s 15th flight) which contributed to more than 7,600 active satellites by June 12.

Both the missions are a part of an aggressive Starlink deployment, mainly for boosting the low Earth orbit constellation for the global broadband coverage. Now the network expands to approximately 7900 satellites, focusing on the biggest LEO broadband constellation ever.

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Astronomers Discover a Gigantic Supernova Remnant in the Large Magellanic Cloud

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July 1, 2025

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Astronomers Discover a Gigantic Supernova Remnant in the Large Magellanic Cloud

Astronomers international team has employed various satellites and telescopes for performing multiwavelength observations of a supernova remnant known as SNR J0450.4-7050. The result that scientists got after an observational campaign, published on June 18, 2025, on the preprint server arXiv, gained new insights into the properties of this remnant, and observed that it is much larger than thought in the past. Supernova remnants (SNRs) are expanded structures resulting from the explosion of a supernova. It usually lasts for several hundred thousand years before the time it disperses into the interstellar medium.

Multiwavelength Observations Reveal New Details of SNR J0450.4-7050

As per the study by NASA, observations by the scientists indicate that SNRs contain the ejected expansion of material from the explosion and other interstellar material swept by the passage of the shockwave from the star that exploded. SNR studies beyond the Milky Way are important for comprehending the feedback in different evolutionary phases and gaining valuable insights into the local ISM. The Large Magellanic Cloud is the galaxy that has its SNR population explored in depth.

Importance of Studying Supernova Remnants Beyond the Milky Way

The recent observations reveal that SNR J0450.4-7050, a large supernova remnant in the LMC having physical dimensions of 332 by 244 light years, is estimated to have the remnants of around 45,000 years old. Scientists named it Veliki, which means large in Serbian. It also showcases the complex filamentary morphology with different inner and outer shell structures.

Discovery of Veliki: A Large, Aged Remnant in the Large Magellanic Cloud

An astronomer’s group led by Zachary J. Smeaton decided to take a closer observation of SNR J0450.4−7050 by the Australian Square Kilometre Array Pathfinder and MeerKAT radio telescope. The SNR showed a high radial surface brightness with one of the lowest average radio spectral indices, with similar remnants.

Unusual Radio Properties Suggest Veliki is a Fully Radiative SNR

These unusual features, according to the scientists, give the prediction that Veliki is mainly a radiative SNR with a high shock compression ratio. This states about the non-thermal spectrum and higher surface brightness and emissions. Further observations of the surrounding environment are needed to confirm the hypothesis with an understanding of the remnants’ nature in a better way.

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