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Image captured by Rover-1A on Sept. 22. Color image captured while hopping on the surface of Ryugu. The left half of the image is the asteroid surface. The bright white region is due to sunlight. Photo: JAXA

Japan's space agency (JAXA) successfully landed two robotic rovers on the asteroid 162173 Ryugu on Sept. 21, marking the first human-made robots to land, move autonomously on an asteroid surface and capture pictures.

Why it matters: The two MINERVA-II1 rovers are part of Japan's ambitious project to learn more about asteroids by deploying various robotic crafts, known as the Hayabusa2 Project.

The history: The success of these rovers comes 13 years after the first Hayabusa mission failed to successfully deploy its mini-lander, known as MINERVA.

What they're saying: "I cannot find words to express how happy I am that we were able to realize mobile exploration on the surface of an asteroid," says Yuichi Tsuda, Hayabusa2 project manager, in a statement. "I am proud that Hayabusa2 was able to contribute to the creation of this technology for a new method of space exploration by surface movement on small bodies."

"I was so moved to see these small rovers successfully explore an asteroid surface because we could not achieve this at the time of Hayabusa, 13 years ago."
— Makoto Yoshikawa, Hayabusa2 project mission manager
Image captured by Rover-1B on Sept. 21. This color image was taken immediately after separation from the spacecraft. The surface of Ryugu is in the lower right. The colored blur in the top left is due to the reflection of sunlight when the image was taken. Photo: JAXA

What's next: The two MINERVA-II1 rovers have cameras on board that can shoot in color, and they have already sent pictures back to Earth. Rover-1A and Rover-1B have been taking pictures as they hop around on the asteroid's surface, but they're not the culmination of the mission.

  • Still to come are the deployment of two other vehicles that will study other details of the asteroid — with the goal of gathering asteroid samples to eventually return them to Earth.

Go deeper: The website of the JAXA Hayabusa2 Project.

Go deeper

14 hours ago - Health

Food banks feel the strain without holiday volunteers

People wait in line at Food Bank Community Kitchen on Nov. 25 in New York City. Photo: Michael Loccisano/Getty Images for Food Bank For New York City

America's food banks are sounding the alarm during this unprecedented holiday season.

The big picture: Soup kitchens and charities, usually brimming with holiday volunteers, are getting far less help.

16 hours ago - Health

AstraZeneca CEO: "We need to do an additional study" on COVID vaccine

Photo: Pavlo Gonchar/SOPA Images/LightRocket via Getty Images

AstraZeneca CEO Pascal Soriot said on Thursday the company is likely to start a new global trial to measure how effective its coronavirus vaccine is, Bloomberg reports.

Why it matters: Following Phase 3 trials, Oxford and AstraZeneca said their vaccine was 90% effective in people who got a half dose followed by a full dose, and 62% effective in people who got two full doses.

Updated 18 hours ago - Politics & Policy

Coronavirus dashboard

Illustration: Sarah Grillo/Axios

  1. Health: Coronavirus cases rose 10% in the week before Thanksgiving.
  2. Politics: Supreme Court backs religious groups on New York coronavirus restrictions.
  3. World: Expert says COVID vaccine likely won't be available in Africa until Q2 of 2021 — Europeans extend lockdowns.
  4. Economy: The winners and losers of the COVID holiday season.
  5. Education: National standardized tests delayed until 2022.