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Wednesday, May 27, 2020
Mountain-size asteroid will appear as a slow-moving star next month

Mountain-size asteroid will appear as a slow-moving star next month

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An artistic impression of another big asteroid: 3200 Phaethon. Theodore R. Kareta A huge asteroid is set to make a close pass by Earth in April, and although it's considered "potentially hazardous" to astronomers, the only show it will be putting on over the next few centuries will be in the night sky.Asteroid 1998 OR2…
Skyscraper-sized asteroid could actually hit Earth (but probably won’t)

Skyscraper-sized asteroid could actually hit Earth (but probably won’t)

An artistic impression of an asteroid. Theodore R. Kareta Every week, tabloid media outlets pump out scary headlines about asteroids passing by Earth that pose no actual threat. This week is no different, except that ironically, an asteroid has been spotted that actually does come with a risk of impact for once. Sooner or later…
Adorable asteroid 2020 CW makes one of the closest passes by Earth ever seen

Adorable asteroid 2020 CW makes one of the closest passes by...

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Asteroid 2020 CW is small but speedy. NASA A speeding space rock made a daring flight above our heads when the adorably appliance-sized asteroid 2020 CW whipped by the planet Saturday. At only about 3.3 feet (a meter) in diameter, the asteroid is roughly the size of an oven, washer or other household appliance. Had…
Asteroid that smashed Earth 2.2 billion years ago may have thawed the planet

Asteroid that smashed Earth 2.2 billion years ago may have thawed...

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Did an ancient asteroid impact thaw the Earth? Andrzej Wojcicki/Getty The ocher plains of central Western Australia hide an ancient scar which may explain how one of the Earth's most intense ice ages came to an end. A 43-mile (70 kilometer) wide crater, known as the Yarrabubba impact structure, shows the planet was smashed by…
An asteroid traveled from beyond Mars to explode over Earth

An asteroid traveled from beyond Mars to explode over Earth

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An artist's rendering of asteroids in the asteroid belt. NASA The more we look, the more places we find asteroids -- whether it's in deep space, within the orbit of Venus or over our heads. The remains of yet another space rock now appear to be taking a permanent vacation on the floor of Lake…
Asteroid that smashed Earth 2.229B years ago may have thawed the planet

Asteroid that smashed Earth 2.229B years ago may have thawed the...

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Did an ancient asteroid impact thaw the Earth? Andrzej Wojcicki/Getty The ocher plains of central Western Australia hide an ancient scar which may explain how one of the Earth's most intense ice ages came to an end. A 43-mile (70 kilometer) wide crater, known as the Yarrabubba impact structure, shows the planet was smashed by…
Asteroid that shot fireball at us ‘could be dangerous to life on Earth’

Asteroid that shot fireball at us ‘could be dangerous to life...

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An asteroid that could break apart has a 6 percent chance of raining down on Earth in the next 10 million years. NASA/JPL Astronomers have traced a 2017 fireball over Japan to a massive nearby asteroid that could eventually break up and shower Earth with dangerous meteors.  It was around 1 a.m. local time on…
No one knows why rocks are exploding from asteroid Bennu

No one knows why rocks are exploding from asteroid Bennu

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Enlarge / A composite image of a short and long exposure photograph of Bennu showing the largest particle ejection on January 6, 2019.NASA | Goddard | University of Arizona | Lockheed Martin For the last year, NASA's OSIRIS-REx spacecraft has been circling a large asteroid named Bennu that regularly passes uncomfortably close to Earth. The…
Tiny, mysterious asteroid is probably going the photo voltaic system’s smallest dwarf planet

Tiny, mysterious asteroid is probably going the photo voltaic system’s smallest...

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Astronomers think (10) Hygiea could be reclassified as a dwarf planet -- which would make it the smallest such body in the solar system.  ESO/P. Vernazza et al./MISTRAL algorithm (ONERA/CNRS) The fourth largest object in the asteroid belt, a space rock known as (10) Hygiea, has been something of a mystery for astronomers even though…
The asteroid that eliminated the dinosaurs acidified the ocean in a ‘flash,’ eliminating most marine life. The seas might see a comparable issue a century from now.

The asteroid that eliminated the dinosaurs acidified the ocean in a...

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A massive asteroid struck present-day Mexico 66 million years ago. The impact contributed to the extinction of the dinosaurs and 75% of life on Earth at the time. The asteroid crash spurred a mile-high tsunami, wildfires, and the release of billions of tons of sulfur that blotted out the sun and led the planet to…

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