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Tag: asteroid

Splosh! How the dinosaur-killing asteroid made its crater

Splosh! How the dinosaur-killing asteroid made its crater

Science
It is hard to imagine billions of tonnes of rock suddenly start to splosh about like a liquid - but that is what happened when an asteroid struck the Earth 66 million years ago.Scientists have now put together a detailed picture of the minutes following the giant impact.This, remember, is the colossal event that wiped out the dinosaurs.The analysis of rocks drilled in 2016 from the leftover crater show they underwent a process of fluidisation.The pulverised material literally began to behave as if it were a substance like water. Media playback is unsupported on your device Dinosaurs suffered catastrophic 'winter' Asteroid strike made 'instant Himalayas' Models had predicted what shou...
Japan delays spacecraft landing on very rocky asteroid

Japan delays spacecraft landing on very rocky asteroid

Technology
Japan's space agency is delaying a spacecraft touchdown on an asteroid because scientists need more time to find a safe landing site on the extremely rocky surface. The spacecraft Hayabusa2 left Earth in 2014 and traveled 280 million kilometers (170 million miles) to the area of asteroid Ryugu, which it reached in June. The Japan Aerospace Exploration Agency plans to attempt three brief touch-and-go landings on Ryugu to collect samples in hopes of gaining clues to the origin of the solar system and life on Earth. JAXA Hayabusa2 project manager Yuichi Tsuda said Friday that the rockier-than-expected asteroid hardly has any flat spaces for landing. "Those rocks are our biggest headache," Tsuda said. "Ryugu is extremely rocky and it's almost cruel." He said his team needs at least a month t...
Japan's hopping space rovers land on asteroid

Japan's hopping space rovers land on asteroid

Technology
Two mini space rovers have landed on an asteroid and sent images back to Earth. Japan's space agency, JAXA, launched the rovers on the Hayabusa2, and they released from the craft on 21 September.The team behind the expedition faced a nervous two-day wait for the Minerva-II rovers to send back information, but on Sunday, they confirmed the rovers landed. Image: Rover-1A, on the right, lands on the asteroid's surface A statement from JAXA read: "The two rovers are in good condition and are transmitting images and data. Analysis of this information confirmed that at least one of the rovers is moving on the asteroid surface."The rovers hop across the surface, because the gravity on the Ryugu asteroid makes it impossib...
Hayabusa-2: Japan's rovers send pictures from asteroid

Hayabusa-2: Japan's rovers send pictures from asteroid

Science
Japan's space agency (JAXA) has made history by successfully landing two robotic explorers on the surface of an asteroid.The two small "rovers", which were despatched from the Hayabusa-2 spacecraft on Friday, will move around the 1km-wide space rock known as Ryugu.The asteroid's low gravity means they can hop across it, capturing temperatures and images of the surface."Both rovers are in good condition," the agency confirmed on Saturday. Skip Twitter post by @haya2e_jaxa We are sorry we have kept you waiting! MINERVA-II1 consists of two rovers, 1a & 1b. Both rovers are confirmed to have landed on the surface of Ryugu. They are in good condition and have transmitted photo...