composite image of Ryugu's rubbly surface

Astrobiology

Analysis of Asteroid Ryugu Reveals Prebiotic Compounds

Prebiotic compounds previously found in meteorites have now turned up in pristine samples from the asteroid Ryugu, confirming their extraterrestrial origin.

Ryugu sample

Solar System

Samples from Asteroid Ryugu Are Most Primitive Material We've Found

The material that the Hayabusa 2 spacecraft returned from asteroid Ryugu is the most pristine sample we've ever gotten our hands on.

Hayabusa 2

Astronomy in Space with David Dickinson

Hayabusa 2 Returns Sample of Asteroid Ryugu to Earth

The predawn operation to recover the Hayabusa 2 sample-return capsule in the Australian Outback was a success.

Earth vs Hayabusa 2

Space Missions

Potential New Targets for Japan's Hayabusa 2 Mission

The Hayabusa 2 team has laid out a proposal for an extended mission to one of two asteroids after the spacecraft's sample return this December.

composite image of Ryugu's rubbly surface

Space Missions

Ryugu May Have Skirted Close to the Sun

Observations by the Japanese Hayabusa 2 spacecraft show subtle color differences, indicating something has reddened the asteroid’s surface.

Hayabusa 2

Solar System

Hayabusa 2 Leaves Asteroid Ryugu and Heads Home

The Hayabusa 2 spacecraft has completed its mission at asteroid Ryugu — including collecting samples — and is now journeying back to Earth.

Ryugu closeup

Solar System

Hayabusa 2 Finds Asteroid Ryugu Is Dark & Dry

Hayabusa 2’s asteroid Ryugu has some unexpected characteristics. In particular, its dry surface could spell trouble for current theories about how Earth obtained its water.

Post-touchdown

Solar System

Hayabusa 2 Touches Down, Collects Asteroid Sample

The Japanese spacecraft Hayabusa 2 has touched down on Ryugu, the asteroid it's been orbiting since last summer, and collected a sample from its surface.

Hayabusa 2 shadow

Space Missions

Touchdown: Hayabusa 2 Deploys Rovers to Explore Ryugu

The Japanese Hayabusa 2 spacecraft dispatched the first of a set of smaller missions that will explore asteroid 162173 Ryugu.

Ryugu closeup

Astronomy in Space with David Dickinson

Hayabusa 2: Welcome to Ryugu

We got a peek at a new worldlet in the inner solar system this week, as the Japanese Aerospace Agency's (JAXA) Hayabusa-2 gave us our first good looks at the tiny asteroid 162173 Ryugu.