Asteroid warning: Space rock comparable to dinosaur killer is heading Earth’s way - Express.co.uk - Canadanewsmedia
Connect with us

Science

Asteroid warning: Space rock comparable to dinosaur killer is heading Earth’s way – Express.co.uk

Published

on


The asteroid known as 1990 MU is currently completing another orbit of the Sun, and in 2027 it could come perilously close to Earth. Asteroid 1990 MU is between 4-9 kilometres in diameter and on June 6 2027, it is set to come within 0.03 AU – astronomical unit. One AU is the distance between the Earth and the Sun, so coming within just 0.03 AU is perilously close.

For reference, Mars – the planet which humans are hoping to reach – is around 0.5 AU.

The asteroid is classed as a potentially hazardous asteroid, which according to NASA has the “potential to make threatening close approaches to the Earth.”

According to data from NASA, 2019 OK was large – an estimated 187 to 427 ft (57 to 130) wide – and hurtling fast along a path bringing it within only 45,000 miles (73,000km) of Earth when it flew by in recent weeks.

This was less than one-fifth of the distance to the Moon and what the Royal Institution of Australia’s Professor Alan Duffy described as “uncomfortably close.”

Asteroid warning: Space rock comparable to dinosaur killer is heading Earth’s way (Image: GETTY)

dinosaurs

An asteroid strike 66 million years ago put an end to the dinosaurs (Image: GETTY)

That asteroid would have been big enough to wipe out a city, so 1990 MU could be truly devastating.

Asteroid 1990 MU is up to nine kilometres in diameter, which puts it in the same ball-park as the space rock which put an end to the dinosaurs.

That space rock is believed to have been between 10-15 kilometres wide and came crashing into what is now Mexico 66 million years ago marking the beginning of the end of the dinosaurs.

Research from the University of Glasgow has found up to three quarters of life on Earth was wiped out from the asteroid, with the dinosaurs dying out within a few centuries.

READ MORE: Asteroid danger: Could HUGE space rock hit Earth this year? 

1990 mu

The orbit of 1990 MU on July 7 2027 (Image: NASA)

The space rock caused a cloud of dust to fill the air which blocked out the sun, leading to drastic and sudden climate change that ultimately created major food shortages across Earth, leading to the death of bigger animals, and allowing smaller creatures, such as mammals, to thrive in their absence.

Now, a comparable asteroid is heading Earth’s way.

While the asteroid will be close within the next decade, it will be even closer in 2058, when it comes within 0.02 AU – less than three million kilometres.

Scientists estimate that a life-ending asteroid, such as the one which put an end to the dinosaur’s reign, would collide with Earth every 100 million years or so.

DON’T MISS
Mining asteroids for rare metals could send them straight at Earth
Neil deGrasse Tyson warns of ‘harbinger of doom’ asteroid
NASA asteroid tracker: Look out as three large space rocks skim Earth

ASTEROID

The hunt for asteroids (Image: ESA)

But asteroids can strike at any moment and there is always a very slim chance a massive civilisation-ending space rock could hit sooner.

For that reason, many claim global authorities should have a plan in place – but it seems they do not.

NASA employee Robert Frost, who works as an instructor and flight controller for the space agency according to his bio on Q+A website Quora, said the best thing governments could do is tell the public to “hunker down”, as there would be little which can be done to prepare for the inevitable.

Mr Frost was writing in response to the question: “If it were discovered that an asteroid was going to wipe humanity out, say in 2 months, how would the governments of the world respond?”

value

The value of asteroids (Image: EXPRESS)

He said: “That’s a tough one. Movies tell us they would keep it secret. There’s a lot of sense to that. Mass panic can be more dangerous than the actual event.

“But my experience working in government is that the government really isn’t good at keeping anything secret unless it begins within a secretive part of the culture, like the military.

“Something like this would likely be first discovered by someone that couldn’t spell ‘security clearance’. It would be evident to astronomers all over the world.

nasa

NASA’s budget by year (Image: EXPRESS)

“Feeling helpless, the government would likely just tell us to ‘hunker down’ and duct tape our window seams.

“Then the Democrats would blame it on the Republicans for ignoring global warming and the Republicans would blame it on the Democrats for not praying in school.”

Let’s block ads! (Why?)



Source link

Continue Reading

Science

Photos Show Evidence of Life on Mars: Insect- and Reptile-Like Fossils & Living Creatures – SciTechDaily

Published

on

By


Analysis of images from Mars rovers shows insect- and reptile-like fossils, creatures according to Ohio University entomologist.

As scientists scramble to determine whether there is life on Mars, Ohio University Professor Emeritus William Romoser’s research shows that we already have the evidence, courtesy of photographs from various Mars rovers.

Dr. Romoser, who specializes in arbovirology and general/medical entomology, has spent several years studying photographs from the red planet that are available on the Internet. He found numerous examples of insect-like forms, structured similarly to bees, as well as reptile-like forms, both as fossils and living creatures. He presented his findings Tuesday, November 19, 2019, at the national meeting of the Entomological Society of America in St. Louis, Missouri.

“There has been and still is life on Mars,” Romoser said, noting that the images appear to show both fossilized and living creatures. “There is apparent diversity among the Martian insect-like fauna which display many features similar to Terran insects that are interpreted as advanced groups – for example, the presence of wings, wing flexion, agile gliding/flight, and variously structured leg elements.”

Insect Mars Rover Photo

Ohio University Emeritus Professor William Romoser analyzed Mars rover photos and found insect-like and reptile-like forms. Credit: Analysis by Dr. William Romoser

Romoser said that while the Martian rovers, particularly the Curiosity Rover, have been looking for indicators of organic activity, there are a number of photos which clearly depict the insect- and reptile-like forms. Numerous photos show images where arthropod body segments, along with legs, antennae, and wings, can be picked out from the surrounding area, and one even appears to show one of the insects in a steep dive before pulling up just before hitting the ground.

Individual images were carefully studied while varying photographic parameters such as brightness, contrast, saturation, inversion, and so on. No content was added, or removed. Criteria used in Romoser’s research included: Dramatic departure from the surroundings, clarity of form, body symmetry, segmentation of body parts, repeating form, skeletal remains, and observation of forms in close proximity to one another. Particular postures, evidence of motion, flight, apparent interaction as suggested by relative positions, and shiny eyes were taken to be consistent with the presence of living forms.

“Once a clear image of a given form was identified and described, it was useful in facilitating recognition of other less clear, but none-the-less valid, images of the same basic form,” Romoser said. “An exoskeleton and jointed appendages are sufficient to establish identification as an arthropod. Three body regions, a single pair of antennae, and six legs are traditionally sufficient to establish identification as ‘insect’ on Earth. These characteristics should likewise be valid to identify an organism on Mars as insect-like. On these bases, arthropodan, insect-like forms can be seen in the Mars rover photos.”

Fossil Image from Mars Rover

Putative fossil insect on its dorsum with head to the top, and with selected structures labelled. Credit: Analysis by Dr. William Romoser

Distinct flight behavior was evident in many images, Romoser said. These creatures loosely resemble bumble bees or carpenter bees on Earth. Other images show these “bees” appearing to shelter or nest in caves. And others show a fossilized creature that resembles a snake.

Romoser, who was an entomology professor at Ohio University for 45 years and co-founded its Tropical Disease Institute, also spent nearly 20 years as a visiting vector-borne disease researcher at the U.S. Army Medical Research Institute of Infectious Diseases. Between 1973 and 1998, Romoser authored and co-authored four editions of the widely-used textbook, “The Science of Entomology.”

Romoser noted that interpretations of insect- and reptile-like creatures he described may change in the future as knowledge of life on Mars evolves, but that the sheer volume of evidence is compelling.

“The presence of higher metazoan organisms on Mars implies the presence of nutrient/energy sources and processes, food chains and webs, and water as elements functioning in a viable, if extreme, ecological setting sufficient to sustain life,” he said. “I have observed instances suggestive of standing water or small water courses with evident meander and with the expected blurring of small submerged rocks, larger emergent rocks at the atmosphere/water interface, a moist bank area, and a drier area beyond the moist area. Water on Mars has been reported a number of times, including surface water detected by instrumentation on Viking, Pathfinder, Phoenix, and Curiosity.

“The evidence of life on Mars presented here provides a strong basis for many additional important biological as well as social and political questions,” he added. It also represents a solid justification for further study.”

Let’s block ads! (Why?)



Source link

Continue Reading

Science

Spacecraft record weird ‘music’ of our planet during solar storm – Yahoo Sports

Published

on

By


March 30, 2010 - Close-up of a solar eruptive prominence as seen in extreme UV light.
Solar storms see our planet buffeted by charged particles. Image shows a prominence on the sun in extreme UV light (Getty)
<p class="canvas-atom canvas-text Mb(1.0em) Mb(0)–sm Mt(0.8em)–sm" type="text" content="An eerie song which wouldn’t sound out of place on a science fiction film soundtrack came wailing from our planet as it was&nbsp;hit by a solar storm.&nbsp;” data-reactid=”22″>An eerie song which wouldn’t sound out of place on a science fiction film soundtrack came wailing from our planet as it was hit by a solar storm. 

But the strange music is actually created by waves in our planet’s magnetic field as it’s buffeted by a solar storm. 

Solar storms are eruptions of charged particles from the sun – and the strange ‘song’ was heard after analysing data from the Cluster Science Archive. 

Cluster consists of four spacecraft that orbit Earth in formation, investigating our planet’s magnetic environment and its interaction with the solar wind – a constant flow of particles released by the Sun into the Solar System.

READ MORE

<h3 class="canvas-atom canvas-text Mb(1.0em) Mb(0)–sm Mt(0.8em)–sm" type="text" content="NASA satellite captures incredible beauty of UK seen from space” data-reactid=”27″>NASA satellite captures incredible beauty of UK seen from space

<h3 class="canvas-atom canvas-text Mb(1.0em) Mb(0)–sm Mt(0.8em)–sm" type="text" content="Binary Earth-sized planets possible around distant stars” data-reactid=”28″>Binary Earth-sized planets possible around distant stars

<h3 class="canvas-atom canvas-text Mb(1.0em) Mb(0)–sm Mt(0.8em)–sm" type="text" content="Insects could die out in ‘worst extinction since the dinosaurs’” data-reactid=”29″>Insects could die out in ‘worst extinction since the dinosaurs’

A team led by Lucile Turc, a former ESA research fellow who is now based at the University of Helsinki, Finland, investigated the effect of solar storms on our planet.

As part of their orbits, the Cluster spacecraft repeatedly fly through the foreshock, which is the first region that particles encounter when a solar storm hits our planet. 

In the early part of the mission, from 2001 to 2005, the spacecraft flew through six such collisions, recording the waves that were generated.

The new analysis shows that, during the collision, the foreshock is driven to release magnetic waves that are much more complex than first thought.

“Our study reveals that solar storms profoundly modify the foreshock region,” says Lucile.

When the frequencies of these magnetic waves are transformed into audible signals, they give rise to an uncanny song.

In quiet times, when no solar storm is striking the Earth, the song is lower in pitch and less complex, with one single frequency dominating the oscillation. 

“It’s like the storm is changing the tuning of the foreshock,” explains Lucile.

Let’s block ads! (Why?)



Source link

Continue Reading

Science

Sea Monsters in the Age of Dinosaurs being presented at Colchester Historeum

Published

on

By

TRURO, N.S. —

Large creatures that once lived in the oceans and lakes will be the focus of an upcoming event at the Colchester Historeum.

‘Sea Monsters in the Age of Dinosaurs’ is an illustrated presentation by Danielle J. Serrato, curator of the Fundy Geological Museum and an educator in Earth sciences.

“I always had a love for the ocean, although I grew up landlocked in Texas,” she said. “My specialty is marine reptiles.”

Her favourite prehistoric creature is the elasmosaurus, an extremely long-necked being that lived underwater.

During the presentation, Serratos will talk about Mesozoic marine reptiles and their modern counterparts in film and folklore, including the Loch Ness Monster, and the mosasaur in Jurassic World.

“Sometimes changes are made so things will sound better in film,” she said. “In Jurassic Park there’s a lot of talk about velociraptors, but those were only about the height of turkeys. What they created for the film is deinonychus, but that name doesn’t sound as dangerous as velociraptor.”

She thinks people are drawn by the mystery and danger connected with prehistoric creatures.

“A lot of it has to do with the sense of curiosity humans have for world around them,” she said. “There’s a creative component because you have to use your imagination. You don’t have to be 100 per cent accurate because we’ve never seen these things and we never will. It’s probably a good thing we won’t see them because these were apex predators.

“We’re starting to realize how little we know about the soft tissues of these creatures, their colours and textures, whether they had fur, scales or feathers.”

Pictures of old movie posters, reconstructions and fossils will add to the presentation which will take place at the Colchester Historeum on Thursday, Nov. 21 at 7 p.m. The event is free for members, $5 for non-members.

Let’s block ads! (Why?)

Source link

Continue Reading

Stay up to date

Subscribe for email updates

Trending