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SpaceX Launches ESA's Hera Probe To Dimorphos Asteroid
October 07, 2024
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A SpaceX Falcon 9 rocket on Monday(Oct. 7) at 1452 UTC, launched European Space Agency's Hera spacecraft to interplanetary transfer orbit, from Cape Canaveral Space Force Station, Florida. Hera will arrive in 2026 at Dimorphos, the target asteroid of NASA's Double Asteroid Redirection Test(DART) mission.

“Planetary defense is an inherently international endeavour, and I am really happy to see ESA's Hera spacecraft at the forefront of Europe’s efforts to help protect Earth," ESA Director General Josef Aschbacher said in a statement after launch. "Hera is a bold step in scaling up ESA’s engagement in planetary defence."

Unlike during typical SpaceX launches, this particular reusable Falcon 9 first stage(or booster 1061) was expended after successful stage separation, because it had to use up all its fuel to launch Hera on its asteroid mission.

"Farewell, 1061, and we thank you," SpaceX's John Insprucker, principal integration engineer, said to the booster after stage separation.

"Due to the additional performance required to deliver Hera to interplanetary transfer orbit, this is the 23rd and final mission for this Falcon 9 first stage booster," SpaceX explained on X. "This first stage previously launched Crew-1, Crew-2, SXM-8, CRS-23, IXPE, Transporter-4, Transporter-5, Globalstar FM15, ISI EROS C-3, Korea 425, Maxar 1, ASBM, and 10 Starlink missions."

The Falcon 9 upper stage deployed Hera to interplanetary transfer orbit about 76 minutes after liftoff, and it has successfully phoned home for its signal acquisition, ESA officials said, delighting astronomer Alan Fitzsimmons, a Hera science team board member. "We've got a working spacecraft," he said. "We're now going back to Didymos and Dimorphos, we'll make those measurements and we'll make the world a safer place from the impact of asteroids."

Hera is currently on its multimillion-mile flight across the solar system, as it heads to the binary asteroid system Didymos, which became famous in September 2022, after NASA smashed its DART spacecraft into Didymos' smaller companion, Dimorphos. That impact altered the orbit of Dimorphos, demonstrating the utility of a planetary defense strategy that could help keep Earth safe from rogue asteroids.

SpaceX explained on X, Monday, "Hera is @ESA’s planetary defense mission that will study the impact NASA’s Double Asteroid Redirection Test (DART) spacecraft had on the Dimorphos asteroid, which launched on Falcon 9 in November 2021. Hera will provide valuable data for future asteroid deflection missions and science to help humanity’s understanding of asteroid geophysics as well as solar system formation and evolutionary processes.i

On the way in 2025, Hera will swing by Mars to avail itself of a gravity assist for its asteroid trip. The DART mission shortened Dimorphos' orbit by 33 minutes.

Hera will look at the depth and size of the crater that DART gouged out on Dimorphos and confirm the impact's changes on the little moon, if any, against early simulations.

The $398 million Hera spacecraft is accompanied by two smaller cubesats, named Milani and Juventas, which will examine the structure of Dimorphos along with its surface minerals and gravity.

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MMX: Japan Launches Historic Mission To Return Mars Moon Phobos' Sample

Japan Aerospace Exploration Agency, JAXA's H3-24L rocket launched the Martian Moons eXploration (MMX) mission on Monday (Oct. 19), at 1941 UTC, from Pad-2 at the Yoshinobu Launch Complex within the Tanegashima Space Center. The mission aims to become the first to return samples from Phobos, Mars’s larger moon, with a targeted Earth return in 2031.

This was the 10th liftoff of Japan's expendable, two-stage H3 rocket (flight H3 F10), which was jointly developed by JAXA and Mitsubishi Heavy Industries. After clearing its launch pad today, the 63-meter rocket flew a nominal trajectory through its ascent corridor over the Pacific Ocean, jettisoning its four solid boosters in pairs just before the flight clock reached two minutes. The launch vehicle shed its payload fairings about one minute and 20 seconds later, exposing MMX to the vacuum of space for the first time.

H3's first stage, powered by two LE-9 rocket engines, channels a mixture of liquid hydrogen and liquid oxygen to produce a combined thrust of 331,000 pounds (1,471 kN), according to Mitsubishi Heavy Industries. As the mission clock approached T+5 minutes, H3 executed its main engine cutoff procedure and separated from the second stage, which ignited its engines for a 5.5-minute burn about 10 seconds later.

All continued to go to plan after that. The H3's upper stage ignited its engine for a second time for a trans-Mars injection burn about one hour and four minutes after liftoff, a maneuver that lasted roughly six minutes and 25 seconds and took MMX to a maximum velocity of about 38,858 kilometers per hour(kph).

MMX was released from the rocket's upper stage right on schedule, about one minute after the completion of that burn and roughly 71 minutes after liftoff. The success elicited loud cheers in mission control, which viewers saw and heard on JAXA's launch webcast.

The spacecraft is now under its own power, and on course for Mars. The interplanetary transit will last about 10 months, with the spacecraft scheduled to arrive at the Red Planet in August 2027. When it does, MMX's propulsion module will execute an orbital insertion burn to place itself in a quasi-satellite orbit (QSO) around Phobos, which places MMX within the space around the moon as both circle Mars.

The primary goal of MMX is to collect at least 10 grams of Phobos regolith to determine if the Martian moons are captured asteroids or formed from debris ejected by an ancient impact on Mars. The mission will also conduct flybys of the smaller moon, Deimos, and study Mars itself to understand the early solar system's evolution. The spacecraft carries 13 scientific instruments, including MEGANE (developed with NASA) to measure elemental composition via gamma rays and neutrons, and MIRS for infrared mineral analysis.

Led by JAXA with contributions from NASA, ESA, CNES (France), and DLR (Germany), the ~4,480 kilogram spacecraft consists of propulsion, exploration, and return modules. Key components include the Idefix rover (developed by France and Germany) for surface reconnaissance and a lander equipped with both a coring sampler and a pneumatic surface sampler.

NASA has also invested about $87 million through the end of the mission, which includes funding for United States scientists and astromaterials experts on the MMX team. At least 15% of the planned 10-gram (0.35 ounces) returned Phobos sample will be reserved for NASA's study. Those materials will be transferred and maintained at the agency's Johnson Space Center in Houston for analysis and long-term preservation.

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France’s nationwide unrest stems from weeks of student protests over deteriorating school conditions, which expanded into mass demonstrations against rising living costs and fuel prices. The country experienced some of the worst street violence it has seen in decades, drawing together a volatile mix of secondary school and university students, former "Yellow Vests," climate activists, farmers, and opportunistic groups.

On Saturday, an estimated 550,000 to 800,000 people took to the streets, with violence erupting in cities including Paris, Marseille, Lyon, and Lille.

About 1,200 to 2,000 people were arrested, over 150 police officers were injured, and widespread looting targeted shops and public buildings. In Saint-Étienne, a 17-year-old protester suffered severe injuries (losing a hand) after a police-deployed grenade detonated.

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Unrest also spread to other European nations, driven by similar economic grievances. While France saw the most catastrophic structural damage, smaller or parallel protests and riots broke out in several other European countries over economic pressures and localized grievances.

In Italy, Portugal, and Belgium, Student and public groups marched against household budget constraints, housing costs, and education affordability, though reports indicate these demonstrations were less violent than those in France and Albania.

In Italy, rallies over the cost of living in cities like Milan and Bologna turned violent. Demonstrators clashed with police, forcing the temporary closure of transit hubs like the Duomo metro station in Milan and causing dozens of injuries and detentions among law enforcement and protesters.

In Liège, Belgium, demonstrations over economic strains escalated into property damage and clashes, resulting in dozens of arrests—including minors.

In Portugal, thousands marched in Lisbon over low wages, skyrocketing rents, and a severe housing shortage, setting up protest tents in Rossio square.

Student-led protests in Tirana, Albania, took on an explicitly anti-government tone, entering their fifth consecutive day of fierce clashes. Beyond standard demands for education reform and jobs, protesters called for the resignation of Prime Minister Edi Rama over corruption allegations. 35 people were wounded and 167 arrested.

The protests in Tirana, started with the controversy over a luxury coastal development project linked to an investment firm founded by Jared Kushner (son-in-law of US President Donald Trump). Police deployed water cannons and tear gas against crowds.

Across Western and Southern Europe, persistent inflation, high energy/fuel prices, and stagnant real wages have created deep financial anxiety among working-class families and the younger demographic.

Critics blame left-wing western leaders and their lax immigration and misguided energy policies. The convergence of students, union workers, and disparate political movements highlights a broader breakdown in trust regarding public institutions and the government.

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Vandenberg SLC-4E is the only U.S. launch pad permitting southward polar departure azimuths, making it critical for national security satellites requiring global coverage.

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The USSF-481 mission cargo remains classified, but public notices identify the mission as TH-2 (Task Order 2) under the Space-Based Sensing and Targeting (SBST) contract.

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