Search results for Tunguska

Space Exploration Aug 10, 2017

Asteroid to shave past Earth on Oct 12: ESA (Update)

A house-sized asteroid will shave past our planet on October 12, far inside the Moon's orbit but without posing any threat, astronomers said Thursday.

Earth Sciences Jul 31, 2017

Geologists offer new clues to cause of world's greatest extinction

A study by a researcher in the Syracuse University College of Arts and Sciences offers new clues to what may have triggered the world's most catastrophic extinction, nearly 252 million years ago.

Space Exploration Jul 3, 2017

NASA FDL developing new approaches to asteroid, comet and solar threats using AI

What do astrophysicist Steven Hawking, Queen guitarist Brian May and the country of Luxembourg have in common? They're all key figures in Asteroid Day - a UN sanctioned day of education to raise awareness about protecting ...

Space Exploration Jun 28, 2017

Are asteroids humanity's 'greatest challenge'?

Throughout its 4.5-billion-year history, Earth has been repeatedly pummelled by space rocks that have caused anything from an innocuous splash in the ocean to species annihilation.

Space Exploration Jun 20, 2017

Scientists warn of asteroid danger

A leading astrophysicist from Queen's University Belfast has warned that an asteroid strike is just a matter of time.

Space Exploration Dec 9, 2016

Why does Siberia get all the cool meteors?

In 1908 it was Tunguska event, a meteorite exploded in mid-air, flattening 770 square miles of forest. 39 years later in 1947, 70 tons of iron meteorites pummeled the Sikhote-Alin Mountains, leaving more than 30 craters. ...

Other Sep 24, 2016

MH370 wreckage hunter won't give up until mystery solved

The fedora, the bomber jacket and the consuming quest invite comparisons to Indiana Jones. Blaine Gibson, though, hasn't matched the film hero's triumph in finding the legendary chest containing the stone tablets inscribed ...

Space Exploration Sep 6, 2016

Extinction alert—saving the world from a deadly asteroid impact

Sixty-five million years ago, disaster struck the Earth. An asteroid or comet around 10km in diameter slammed into what is now the Yucatan Peninsula in Mexico.

Condensed Matter Mar 14, 2016

Shock compression research shows hexagonal diamond could serve as meteor impact marker

In 1967, a hexagonal form of diamond, later named lonsdaleite, was identified for the first time inside fragments of the Canyon Diablo meteorite, the asteroid that created the Barringer Crater in Arizona.

Space Exploration Mar 3, 2016

The truth about Scotland's mysterious fireball

On Monday February 29 around 18:45, many lucky people in Scotland and the north of England witnessed something spectacular. A bright light streamed across the sky, flashing several times before fading away. You could see ...

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