Skip to the stories
Tuesday, 20 October 2026
Saved

Next edition

16:59

Headlines

Top Stories

Japan launches uncrewed spacecraft to collect soil samples from Mars moon

Japan has launched the uncrewed Martian Moons eXploration probe to retrieve soil samples from a moon of Mars.

FTMQ Space, written by our newsroom0 views

Share

Japan launched an uncrewed spacecraft on a mission to explore the moons of Mars and retrieve soil samples. The Martian Moons eXploration probe lifted off aboard an H3 rocket from the Tanegashima Space Center. According to Phys.org Space, the rocket was scheduled to blast off at 4:41 a.m. local time on Tuesday, corresponding to 19:41 GMT on Monday. The Wall Street Journal, Bloomberg, PBS, and Space also reported on the launch. [1][2][5][6][7][8]

The primary objective of the Martian Moons eXploration mission is to gather samples from a Martian moon and return them to Earth. Phys.org Space reported that the spacecraft aims to become the first mission to retrieve samples from one of the moons of Mars. Space specified that the target for the sample-return effort is Phobos. Engineering and Technology Magazine also noted the sample-return goals. [2][4][5][7]

Japanese scientists aim to use the returned samples to better understand the origins of the solar system and how life developed on Earth, Phys.org Space reported. Mars has two natural satellites, Deimos and Phobos. Deimos is the smaller and outer moon, with a mean radius of 6.2 kilometres, orbiting Mars at a distance of 23,457.50 kilometres over a period of 30.3 hours. [2][13]

Japan has a history of robotic planetary exploration dating back to the Hiten spacecraft, which launched on January 24, 1990. Originally designated MUSES-A, Hiten was built by the Institute of Space and Astronautical Science of Japan. It served as the first lunar probe for Japan and was the first robotic lunar spacecraft launched by any country other than the Soviet Union or the United States. [14]

Share

In short

  • Japan launched the uncrewed Martian Moons eXploration probe aboard an H3 rocket from Tanegashima Space Center.
  • The mission aims to collect soil samples from a moon of Mars and return them to Earth.
  • Phys.org Space reported the launch was scheduled for 4:41 a.m. local time on Tuesday.
  • Deimos is the smaller and outer moon of Mars, with a mean radius of 6.2 kilometres.

Sources

Every paragraph above points to the numbered items it rests on. Read the originals here.

  1. [1]Japan Launches Spacecraft to Explore Mars’s Mysterious MoonsWSJ, 3h ago (the report this story comes from)
  2. [2]Japan to launch world-first mission to moon of MarsPhys.org Space, 5h ago
  3. [3]How to watch Japan’s mission to MarsPopular Science, 8h ago
  4. [4]Spacecraft to collect samples from Mars moon and return them to EarthEngineering and Technology Magazine, 10h ago
  5. [5]Watch Japan launch a bold sample-return mission to Mars moon Phobos todaySpace, 15h ago
  6. [6]Japan Launches Probe in First Sampling Mission to a Moon of MarsBloomberg.com, 5h ago
  7. [7]Japan launches historic MMX sample-return mission to Mars' moon Phobos (video)Space, 5h ago
  8. [8]Japan launches spacecraft to Mars' moon in mission to bring back soil samplesPBS, 4h ago
  9. [9]Watch: Japan launches historic Mars mission to probe mysterious moons, bring samples backThe Times of India, 5h ago
  10. [10]Japan launches spacecraft to mysterious moons of Mars in a bold mission to bring home soil samplesCoastTV, 5h ago
  11. [11]Japan launches spacecraft to mysterious moons of Mars in a bold mission to bring home soil samplesThe Killeen Daily Herald, 5h ago
  12. [12]Japan launches spacecraft to mysterious moons of Mars in a bold mission to bring home soil samplesGoshen News, 5h ago

Background

  1. [13]Deimos (moon) on Wikipedia
  2. [14]Hiten (spacecraft) on Wikipedia

Our newsroom writes these reports with the help of software, from the 14 sources listed and nothing else, and checks them against those sources. Facts can still be wrong or move on; the originals are the record. Spotted a mistake? Write to daniel@monsterkong.com.

Earlier reports of ours on the same people and subjects.

More in Top Stories

Get the day in one email

Reports like this one, the top news of the last 24 hours, every morning. Free, one email a day; readers can comment under every report.

By signing up you agree to our terms and privacy policy. Unsubscribe any time.

Comments

Loading

Join the conversation

Comments are open to readers of our daily email: the top news of the last 24 hours, every morning, free. Sign up and the comment box opens.

Already on the list? Enter the same address and we will send a sign-in link.

By signing up you agree to our terms and privacy policy. Unsubscribe any time.