Wednesday, 26 April 2017
News with tag Asteroids  RSS
Mars Trojans may be part of a planet that was destroyed long ago

Added: 26.04.2017 1:53 | 0 views | 0 comments

Nine asteroids that trail the Red Planet contain a material usually only formed in the mantle of rocky planets

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Make Mars Livable with Asteroids: Researchers Propose Terraforming Plan

Added: 25.04.2017 15:51 | 1 views | 0 comments

A new plan for the "terraformation" of Mars has been scripted by a research team – a blueprint for the red planet to terraform a site on Mars in 2036.


Mars Trojans may be part of a planet that was destroyed long ago

Added: 25.04.2017 12:21 | 1 views | 0 comments

Nine asteroids that trail the Red Planet contain a material usually only formed in the mantle of rocky planets

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Scientists rank all the ways an asteroid can kill you

Added: 21.04.2017 19:58 | 2 views | 0 comments

Tonight, a particularly large asteroid is going to cruise by Earth at its closest point in 400 years, and while we humans are going to be observing the flyby at a safe distance, there's always a small twinge of doubt that whispers "what if...?" in the back of our minds. Scientists led by Clemens Rumpf of the University of Southampton in the UK decided to answer that question what aspects of an asteroid collision are actually the biggest threats to human existence. The results might surprise you.

The research paper, which attempted to rank seven key effects of an asteroid slamming into Earth in terms of their destructive capabilities, was published in the journal Geophysical Research Letters this week.
To generate the rankings, the scientists ran 50,000 asteroid impact simulations, playing out the scenario over and over on different parts of a virtual Earth. The simulations took into account asteroids that simply explode before actually reaching the ground, called airbursts, as well as space rocks of much larger sizes.
Of the seven different destructive effects — which included wind, thermal, cratering, tsunami, pressure, seismic, and ejecta (debris) — the simulations showed that wind was by far the biggest threat to human life in the wake of an astroid impact, pushing down everything in its path including structures. The thermal threat and high-pressure shock wave are more pronounced on land than they are during an oceanic impact, but the tsunamis created during an asteroid strike at sea remains the biggest threat to life in those particular scenarios.
In short, it's not the actual impact of an asteroid that is most likely to kill you, but the response of Earth's elements to the unwelcome invader that will spell your doom.

From: https:

Death by Asteroid: The Most Likely Ways for a Space Rock to Kill You

Added: 21.04.2017 12:05 | 2 views | 0 comments

If an asteroid strike kills you, it will probably do so with powerful winds and/or shock waves.


Pictured: NASA snaps large asteroid set for Earth fly-by

Added: 20.04.2017 13:52 | 2 views | 0 comments

A large asteroid is whizzing by Earth this week, and NASA has the images to prove it.


Close call: When asteroids whisk past Earth

Added: 19.04.2017 20:54 | 4 views | 0 comments

A peanut-shaped asteroid 1.3 kilometres (3,280 feet) across streaked past Earth on Wednesday, giving astronomers a rare chance to check out a big space rock up close. Dubbed 2014-JO25, the asteroid came nearest at 12:20 GMT and is now hurtling away from the centre of our solar system, said Ian Carnelli, an astronomer from the European Space Agency (ESA). "It does not represent a danger to our planet," Carnelli told AFP, noting that the asteroid passed within 1.8 million kilometres (1.1 million miles) of Earth -- about four times the distance to the moon.

Tags: EU, Asteroids, GM, SPA
From: https:

Earth Had 'Close Encounter' With Rock Of Gibraltar-Sized Asteroid On Wednesday

Added: 19.04.2017 19:27 | 6 views | 0 comments

Planet Earth had yet another “close encounter” when a large asteroid the size of the Rock of Gibraltar passed safely by Wednesday, BBC News reported. The object, measuring nearly a kilometer wide, came within five times the distance between the Earth and the Moon, the report said. The asteroid, known as 2014 JO25, is the biggest space rock to pass by the planet since 2004, the report said. Views of the rock will best be seen in the darkness Wednesday night, the report said, weather permitting. The peanut-shaped asteroid, which rotates about once every five hours, was observed using radar imagery from NASA’s 70m (230 ft.) antenna at the Goldstone Deep Space Communications Complex in...

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New study ranks hazardous asteroid effects from least to most destructive

Added: 19.04.2017 17:20 | 1 views | 0 comments

If an asteroid struck Earth, which of its effects -- scorching heat, flying debris, towering tsunamis -- would claim the most lives? A new study has the answer: violent winds and shock waves are the most dangerous effects produced by Earth-impacting asteroids.

Tags: Asteroids
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'Gibraltar-sized' space rock passes Earth

Added: 19.04.2017 17:09 | 2 views | 0 comments

A large asteroid the size of the Rock of Gibraltar has passed safely by Earth.

Tags: Asteroids, SPA

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