Samples of 'alien' asteroid Ryugu are crawling with life — from Earth
Scientists have found microorganisms crawling over a sample retrieved from the 200 million-mile-distant asteroid Ryugu. But they almost certainly came from Earth.
Japan's priceless asteroid Ryugu sample got 'rapidly colonized' by Earth bacteria
"The fact that terrestrial microbes are the Earth's best colonizers means we can never completely discount terrestrial contamination."
Japan brought rocks from asteroid Ryugu. Earth-based bacteria colonised it
The samples were collected by Japan's Hayabusa-2 spacecraft, which launched in December 2014 and successfully rendezvoused with Ryugu in June 2018.
Life found on Ryugu asteroid sample, but it’s not as exciting as it sounds
A recent discovery made by scientists working with a sample of rock from outer space highlights one of the huge challenges that such work involves.
Signs of Life in Asteroid Sample Turn Out to Be Something Embarrassing
Last year, researchers excitedly announced that they had found two organic compounds essential for living organisms in samples retrieved from an asteroid called Ryugu. The Japanese Space Agency's Hayabusa2 spacecraft obtained the samples from the space rock in 2019.
Asteroid Sample Was Quickly Taken Over By Life – In A Sterilized Environment!
Imagine that, for billions of years, you're a grain of material unbothered on asteroid Ryugu. All of a sudden, a spacecraft flies down, shoots you with a pellet to kick you up, and collects you, taking you back to Earth.
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Angry Planet
What if Earth were furious with humanity? What if revolutionaries took their cues from an unruly planet? Anne ...
Earth parts ways with its temporary ‘second moon’
A temporary “mini- moon ” orbiting the Earth for the last two months drifted away on Tuesday, resuming its journey around the ...
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Earth Bids Goodbye to Its 'Mini-Moon,' as Astronomers Investigate Where Our Planet's Asteroid Companion Came From
After almost two months of companionship, Earth has just lost its “mini-moon.” On Monday, the asteroid dubbed 2024 PT5 was ...
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Origins: Where Are the Aliens?
These planets are relatively small in size and in mass. A terrestrial planet has a solid rocky surface, with metals deep in its interior. In the solar system, these planets are closer to the sun ...
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Planet Mercury
In appearance it is similar to Earth's Moon. The planet is terrestrial, meaning that it has a solid surface and is mainly made of silicate rocks or metals. The planet Mercury is mainly made up ...
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Boost for Mars life? Red Planet's magnetic field may have lasted longer than thought
A planet like Earth has an iron-nickel core that comes in two parts, a solid inner core and a molten outer core. When any terrestrial planet is born, its core is entirely molten, and the solid ...
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E.T. the Extra-Terrestrial: Return to the Green Planet
He secretly builds a craft using only organic resources found on the Green Planet and converts an oversize turnip into a spaceship that can carry him through space back to Earth. Along the way ...
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Fungi Are Responsible For Life On Land As We Know It
From helping plants to colonize terrestrial earth to treating disease ... for land plants that allowed them to spread and turn the planet green — changing the composition of the atmosphere.