Saturday, November 23, 2019

NASA asteroid warning: ‘Nothing’ can be done to stop major asteroid destroying Earth | Science |

Mr Frost wrote on Q&A site Quora: “Nothing could be done at the present time or in the near future. Any designs on how to prevent such an event are in the speculation and conjecture stages.”

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“Destroying such a massive object would require an immense amount of energy. We currently have neither the capability to destroy such an object nor the capability to reach it far enough away from Earth to inflict such a blow.

Publisher: Express.co.uk
Date: 2019-11-23T14:11:00+00:00
Author: Sean Martin
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While you're here, how about this:

Asteroids big enough to destroy cities hit Earth more often than expected, scientists say | Metro

A scary new study has revealed that asteroids big enough to wipe out millions of people hit Earth much more frequently than previously believed.

Scientists analysed Wolfe Creek Crater, which is believed to be the second-largest impact crater on Earth, and found that the cosmic collision took place more recently than expected.

But before we go on to tell you about how nervous you should be, it's worth a quick reminder of the different types of space objects.

Publisher: Metro
Date: 2019-11-22T10:58:08+0000
Twitter: @MetroUK
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Asteroid warning: Earth WILL be hit by rock size of dinosaur-ending strike - expert claim |

Answering the question ‘Will an asteroid hit the Earth again?’ on Q&A website Quora, Mr Walker said: “Yes. Ones as large as the Chicxulub impact every 100 million years or so on average - those are around 10km or over. The last one was 66 million years ago.”

NASA has made great strides in discovering near-Earth objects that are over one kilometre in size, with 90 percent now accounted for.

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While the chances of a major asteroid hitting Earth are small – NASA believes there is a one-in-300,000 chance every year that a space rock which could cause regional damage will hit – the devastating prospect is not impossible.

Publisher: Express.co.uk
Date: 2019-11-21T10:18:00+00:00
Author: Sean Martin
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Hygiea: Enormous Asteroid Is Actually a Tiny Dwarf Planet, Scientists Say

One of the biggest asteroids in the solar system is actually a dwarf planet, scientists have said. Hygiea, which is about the size of Iowa, with a diameter of 267 miles, is the fourth largest object in the asteroid belt that sits between Mars and Jupiter. It formed during a huge collision over two billion years ago—an event that led to the creation of one of the biggest asteroid families.

Despite being discovered in 1849, Hygiea has never been observed with a high enough resolution to establish its surface composition or shape. Using the European Southern Observatory's (ESO) Very Large Telescope, researchers led by Pierre Vernazza, from the Laboratoire d'Astrophysique de Marseille, France, have now found Hygiea is spherical and has a similar composition to Ceres—a dwarf planet that is the biggest object in the asteroid belt.

Publisher: Newsweek
Date: 2019-10-28T12:01:01-04:00
Twitter: @newsweek
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Not to change the topic here:

Asteroid warning: Astronomers fear Asteroid Apophis will hit in 2029 and 2036 | Science | News |

On April 13, 2029, asteroid Asteroid Apophis will scrape by the planet from a distance of just 19,000 miles (31,000km) above its surface.

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Although Apophis will not hit Earth on this occasion, Mr Bałdyga said there is a small chance Apophis could strike a satellite during the flyby.

The possibility has led to some concern Apophis could then deviate from its orbit enough to come crashing into Earth in 2036.

He told TVP3 Olsztyn: “On April 13, it will approach from a distance of 38,000km and let’s remind ourselves geostationary satellites fly from a height of 35,000km from Earth’s surface.

Publisher: Express.co.uk
Date: 2019-11-22T11:25:00+00:00
Author: Sebastian Kettley
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November Astronomical Highlights: Mercury's Transit and Asteroid Vesta | Sierra Club

November is a busy month, both during the day as everyone starts to prepare for the holiday season, and at night, when there's plenty going on up above.

On November 11, Mercury passes between the sun and Earth, appearing as a tiny dark spot on the sun's surface. This relatively rare event, known as a transit of Mercury, occurs only about 13 times a century. The next opportunity to see it will be 13 years from now, on November 13, 2032.

For those in the United States, the event begins in the morning as the sun is rising and ends approximately six hours later. The exact time and path Mercury takes across the sun will differ depending on your location. On the East Coast, the sun will rise before Mercury begins its transit. In the central US, the transit begins around the same time as sunrise (approximately 7 A.M.) and finishes around noon.

Publisher: Sierra Club
Date: 2019-10-31T09:33:23-07:00
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The Downlink: A New Look at Asteroid Hygiea, Setback for InSight | The Planetary Society

Astronomers using the Very Large Telescope in northern Chile captured a new image of asteroid Hygiea . The images revealed that the fourth-largest main-belt asteroid is round and has a diameter of roughly 430 kilometers. Hygiea’s roundness means it could be reclassified as a dwarf planet. If it becomes one, it would be the smallest; Ceres currently holds that title with a diameter of about 950 kilometers . 

NASA plans to launch a water-mapping rover to the Moon’s south pole in 2022. VIPER, the Volatiles Investigating Polar Exploration Rover, will analyze ice in the Moon’s permanently shadowed craters using a 1-meter-long drill built by Honeybee Robotics. The Planetary Society has helped fund tests of several Honeybee technologies over the years, including Planetary Deep Drill and PlanetVac, a sample-collection device that will launch to the Moon as early as 2021 . 

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Twitter: @exploreplanets
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New dig supports asteroid theory of SC tribe disappearance | News | postandcourier.com

With the recent publication of their research in the journal Nature, a group of South Carolina scientists has boldly thrust itself into perhap…

Publisher: Post and Courier
Date: _____
Author: Bo Petersen bopete postandcourier com
Twitter: @postandcourier
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