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Samples of 'alien' asteroid Ryugu are crawling with life — from EarthScientists have found microorganisms crawling over a sample retrieved from the 200 million-mile-distant asteroid Ryugu. But they almost certainly came from Earth.
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Earth's '2nd moon' escapes our planet's orbit — will it ever return?The mini-moon 2024 PT5, which has been orbiting Earth for two months and is likely a chunk of the moon, will now drift away from our planet in an orbit around the sun.
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What is plate tectonics?Blame plate tectonics for Earth’s mountains, earthquakes, volcanoes, and why its continents fit together like pieces of a giant jigsaw puzzle.
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'God of chaos' asteroid may be transformed by tremors and landslides during 2029 flyby of Earth, study findsWhen the 'God of chaos' asteroid Apophis makes an ultraclose flyby of Earth in 2029, our planet's gravity may trigger tremors and landslides that totally change the asteroid's surface.
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How many weeks are there in a year?We take our timekeeping rules for granted, but the history of these rules is long and complex.
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Most of Earth's meteorites may have come from the same 3 spotsScientists say they've uncovered where the vast majority of Earth's meteorites came from.
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4 large asteroids, including a skyscraper-size 'city killer,' will zoom past Earth in a 12-hour span tomorrow (Oct. 24)Four "potentially hazardous" space rocks, which are between 100 and 580 feet across, will all make their closest approaches to Earth within less than 12 hours of one another on Thursday (Oct. 24). Two of them were only discovered earlier this month.
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How old is planet Earth?How old is Earth? Our planet's age is known from a variety of sources, from rocks on our own planet to ones from the moon.
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Listen to haunting sounds of Earth's magnetic field flipping 41,000 years ago in eerie new animationA new video shows how Earth's magnetic field weakened and warped before temporarily flipping during a recent "polar reversal event."
