Dinosaur extinction: ‘Asteroid strike was real culprit’

This has been a bit of a “to and fro” argument of late, but now a group of scientists has weighed in with what they claim is the definitive answer.

“It was the asteroid ‘wot dun it’!” Prof Paul Wilson told the BBC.

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Scientists analysing a meteorite have discovered the oldest material known to exist on Earth.

They found dust grains within the space rock – which fell to Earth in the 1960s – that are as much as 7.5 billion years old.

The oldest of the dust grains were formed in stars that roared to life long before our Solar System was born.

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Satellite constellations: Astronomers warn of threat to view of Universe

By Rebecca MorelleScience correspondent, BBC News

Astronomers are warning that their view of the Universe could be under threat.

From next week, a campaign to launch thousands of new satellites will begin in earnest,

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Asteroid collisions trigger cascading formation of subfamilies, study concludes

Billions of years ago, asteroid collisions resulted in the ejection of fragments hundreds of kilometers across and sharing similar orbits. The resulting groups are known as asteroid families.

Other asteroid groups formed as a result of rotational fission,

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Russia working on means to destroy dangerous asteroids hurtling toward Earth

Humongous space rocks fly past Earth on a regular basis, and have in the past collided with our planet, leading to unparalleled mass-extinctions. To make matters worse, some of them are known to fly at trajectories which allow them to sneak up on our planet before scientists can even spot them,

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NASA selects site for asteroid sample collection on Bennu

After a year scoping out asteroid Bennu’s boulder-scattered surface, the team leading NASA’s first asteroid sample return mission has officially selected a sample collection site.

The Origins, Spectral Interpretation, Resource Identification, Security, Regolith Explorer (OSIRIS-Rex) mission team concluded a site designated “Nightingale”

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Looking Toward Work on NASA’s Potential Asteroid-Hunting Space Telescope

The University of Arizona is spearheading work that would begin efforts to construct a space-based infrared telescope that could provide the capabilities NASA needs to search for asteroids and comets that pose impact hazards to Earth, called near-Earth objects, or NEOs.

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OSIRIS-REx engineers pull off a daring rescue of asteroid mission

On Friday, Oct. 11, the OSIRIS-REx team should have been preparing to point their spacecraft cameras precisely over the asteroid Bennu to capture high-resolution images of a region known as Osprey. It is one of four sites scientists are considering from which the spacecraft can safely collect a sample in late 2020.

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US meteorite adds to origins mystery

In January 2018, a falling meteorite created a bright fireball that arced over the outskirts of Detroit, Michigan, followed by loud sonic booms.

The visitor not only dropped a slew of meteorites over the snow-covered ground, it also provided information about its extra-terrestrial source.

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Antarctica: Metal meteorite quest set to get under way

By Jonathan Amos BBC Science Correspondent

A team of British scientists has arrived in the Antarctic to try to find the continent’s “missing meteorites”.

The group, from the University of Manchester, will spend six weeks scouring a remote region for lumps of iron that have fallen from the sky.

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