Tag

Phobos

All articles tagged with #phobos

Japan's MMX readies Phobos sample return to Earth by 2031
space3 days ago

Japan's MMX readies Phobos sample return to Earth by 2031

Japan unveiled the Martian Moons eXploration (MMX) spacecraft at Tanegashima Space Center, lining up an Oct. 19 launch window to grab about 10 grams of material from Phobos, deploy a 25-kilogram rover (Idefix) for surface study, and return the samples to Earth by 2031 after a roughly year-long journey to Mars; the mission will also study Deimos and aim to determine how Mars’ moons formed, marking the first successful Mars-system sample return.

Phobos sample-return: Japan’s MMX to bring Martian moon dust to Earth
space7 days ago

Phobos sample-return: Japan’s MMX to bring Martian moon dust to Earth

Japan’s Martian Moons eXploration (MMX) aims to land a small rover on Phobos, collect more than 10 grams of material with two sampling systems, and return a capsule to Australia by 2031—the first deliberate Martian-system sample brought to Earth. The mission will include a 25‑kg IDEFIX rover, a brief daytime Phobos touchdown, and a return capsule for lab analysis in South Australia, with 11 instruments mapping landing sites and characterizing the material to probe Phobos’s origin and Mars’s history.

One-pixel Earth hides behind Phobos: Perseverance captures historic occultation from Mars
space8 days ago

One-pixel Earth hides behind Phobos: Perseverance captures historic occultation from Mars

NASA’s Perseverance rover on Mars recorded a nine-image sequence in which Earth, a one-pixel dot 314 million kilometres away, passes behind Phobos, marking the first observation of Earth disappearing behind another world from the surface of a different planet; the event is presented as an annotated composite rather than a continuous video, highlighting careful geometry and timing.

Japan eyes Mars’ moons for first sample-return voyage
space8 days ago

Japan eyes Mars’ moons for first sample-return voyage

Japan’s JAXA plans the unmanned MMX mission to orbit Mars’ moons Phobos and Deimos, landing on Phobos to collect at least 10 grams of material and returning a capsule to Earth around 2031, in collaboration with CNES, DLR, NASA and ESA. The mission aims to shed light on how Mars and its moons formed and how water, volatiles, and organics reached the inner solar system, as rival China pursues its Tianwen-3 sample-return and NASA’s Perseverance is noted as having samples but described as effectively canceled in the article.

Phobos inches toward Mars—potentially forming a temporary ring in tens of millions of years
space14 days ago

Phobos inches toward Mars—potentially forming a temporary ring in tens of millions of years

Mars’s inner moon Phobos is spiraling inward at about 1.8 centimeters per year due to tidal interactions; models suggest the moon’s weak interior could break apart in roughly 20–40 million years, spreading material into a temporary ring around Mars that might last from 1 million to 100 million years before debris either falls to the planet or disperses. Whether Phobos stays intact depends on its internal strength, with a stronger, more coherent interior potentially surviving closer to Mars while weaker material would disintegrate sooner.

Earth as a Tiny Speck: Mars rover captures a rare Earth-Phobos moment
space18 days ago

Earth as a Tiny Speck: Mars rover captures a rare Earth-Phobos moment

NASA’s Perseverance rover used the Mastcam-Z camera to produce a grainy composite showing Earth as a tiny bright dot passing behind Mars’ moon Phobos on July 2, 2026. It’s the first time Earth has been photographed from the surface of another planet while an astronomical object occluded it, achieved by stacking nine frames and processing to darken the background; the event also nods to earlier Earth-from-Mars shots by Spirit (2004) and Curiosity (2014).

Mars’s enigmatic surface features get a second look from a theoretical physicist
science1 month ago

Mars’s enigmatic surface features get a second look from a theoretical physicist

Reality Check host Ross Coulthart and theoretical physicist Maaneli Derakhshani scrutinize puzzling Mars surface features—the 'face' and nearby geometric formations—using fractal analysis to test whether they’re natural or engineered, while referencing lunar anomalies and Phobos 2’s monolith and Carl Sagan’s life-detection standards. The takeaway is that several patterns remain open questions that merit further study, not conclusions.

Phobos: Crater Clues May Decode a Martian Moon's Birth
space2 months ago

Phobos: Crater Clues May Decode a Martian Moon's Birth

Researchers at the EGU meeting modeled how small changes in Phobos’ geophysical signals around the 9‑km Stickney crater could help determine its interior and origin, weighing whether Phobos formed from debris after a giant Mars impact (~4.2 billion years ago) or was captured as an asteroid (~2.6 billion years ago). Current data suggest a porous interior with possible water ice and a localized denser mass near the equator, making gravity mapping and libration measurements key tests. The upcoming Japanese MMX mission (late 2026 launch) aims to orbit Phobos, collect surface samples with a core sampler and a NASA-provided pneumatic sampler, and return them to Earth by mid‑2031, which should help constrain Phobos’ formation scenario by linking interior structure, gravity, and composition.

The New Space Race: Bringing Home Untouched Mars, Phobos, and Asteroid Samples
space2 months ago

The New Space Race: Bringing Home Untouched Mars, Phobos, and Asteroid Samples

NASA’s Mars Sample Return architecture has effectively been unwound in favor of a Mars Future Missions technology line, shifting the race for pristine samples to China and Japan with campaigns targeting Mars, the Martian moon Phobos, and the near-Earth asteroid Kamo'oalewa. Perseverance has collected roughly 30 sealed samples but there is currently no funded retrieval mission in the U.S. pipeline. Looking ahead, China’s Tianwen-2 aims for Kamo'oalewa with a 2026–27 rendezvous and a 2027 return, Japan’s MMX targets Phobos samples for around 2031, and China’s Tianwen-3 aims to return Martian material around 2030–31; if Tianwen-3 succeeds, China would deliver the first Martian samples, though the Jezero collection remains scientifically richer and presently unfunded for retrieval under U.S. policy.

Phobos May Shatter Earlier Than Expected in Violent Tidal Breakup
astronomy3 months ago

Phobos May Shatter Earlier Than Expected in Violent Tidal Breakup

New research suggests Mars’s inner moon Phobos could break apart much sooner than the Roche limit due to its rubble-pile makeup and increasing tidal distortion. Initial surface shedding is predicted around 2.25 Mars radii, with larger fragmentation at about 2.15–2.13 RM, and instability near ~2.09 RM that could trigger breakup. Debris from these events may re-impinge on Phobos, accelerating destruction in a scenario called a sesquinary catastrophe. The MMX mission, launching in 2026, will study Phobos’s interior to refine these timelines.

Japanese MMX Moves to Launch Pad for Phobos Sample-Return Mission
space-exploration4 months ago

Japanese MMX Moves to Launch Pad for Phobos Sample-Return Mission

Japan’s Martian Moons eXploration (MMX) has reached Tanegashima for a late-2026 launch on the H3 rocket. The mission will collect about 10 grams from Phobos and return the samples to Earth in 2031, aided by the IDEFIX rover to scout a landing site. MMX aims to help determine whether Phobos and Deimos are captured asteroids or Mars ejecta, offering insights into Mars’ history and the inner solar system; after delays tied to H3 issues, the project targets a Mars-orbit phase in 2027 and a Phobos landing in 2029.

Mars's Moons: Do They Exist?
science1 year ago

Mars's Moons: Do They Exist?

Mars has two small moons, Phobos and Deimos, whose origins are still debated; they may be captured asteroids or formed from debris after a collision with Mars. Upcoming JAXA missions aim to analyze samples from Phobos to better understand their formation and possibly early Mars conditions.