Hayabusa2 rovers start exploring asteroid Ryugu

Authored by astronomy.com and submitted by clayt6
image for Hayabusa2 rovers start exploring asteroid Ryugu

We’ve sent rovers to explore neighboring planets and moons, but we can now check another near-Earth target off of the list.On September 21, Japan’s Hayabusa2 spacecraft successfully deployed two rovers on to the surface of asteroid Ryugu, becoming the first in history to accomplish such a feat. Once there, rover-1A and 1B were quick to get to work. They began exploring the surface, snapping pictures and taking videos , giving us a long-awaited ground-level view of an asteroid.Hayabusa2, which has been hovering roughly 12 miles (20 kilometers) above the asteroid since it arrived in June, descended to just 180 feet (55 meters) above Ryugu to deploy the rovers from its MINERVA-II lander. Now that they’re operational, the two will spend their time investigating Ryugu’s surface for clues about its formation, evolution and ultimately the state of our early solar system.Asteroids like Ryugu, which orbits between Mars and Earth, are hot research commodities. Unlike planets, it’s believed they’ve more or less gone unchanged since they first formed in the early days of our solar systems. Researchers believe that they may have spread organic molecules around the ancient solar system, as well as water. Ryugu, which likely carries lots of hydrated material, is a good candidate for probing that hypothesis further.

einenchat on September 28th, 2018 at 06:47 UTC »

This is so cool! Read about this on another post earlier. I just read that it is 180 million miles away! The moon, in comparison, is 238,900 miles (average) away. Ryugu - this tiny rock - is quite far! And all this was planned and made and calibrated on earth and then just sent away :) Really awesome .. does anyone know why did we go there in the first place? Am still looking for the answer

Blarg0117 on September 28th, 2018 at 05:02 UTC »

What's the escape velocity? Could a person jump out of orbit?

Houmann47 on September 28th, 2018 at 03:00 UTC »

Are you saying that some cute little rover is jumping like a bunny.