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Morning Start: Rain, rain, go away – Revelstoke Review

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The turnaround from summer to fall may happen in the Okanagan quicker than expected. Environment Canada forecasts rain with breaks of sun throughout Saturday with mostly more rain through the rest of next week.

Highs ranging around 20 C can be expected, but the Okanagan may have seen the last of the blistering sunny days for now.

Fun fact of the day:

The full moon closest to the Autumn Equinox is called the Harvest Moon. It was believed to be vital for an abundant harvest by many cultures.

Did you catch the Harvest Moon Friday night?

Weather forecast according to Environment Canada:

In Kelowna:

Highs of 21 C Saturday with a mix of sun and a 40 per cent chance of rain throughout the day. Rain and clouds are expected through the evening as the night time temperature drops to around 13 C.

In Vernon:

A mix of sun, clouds and rain throughout Saturday. A high of 21 C with a 40 per cent chance of rain and dropping to 13 C in the evening.

In Salmon Arm:

A dryer expected Saturday in Salmon Arm with slight chances of rain coming later in the night. High of 19 through the day with mostly sun and a mix of clouds. High of 13 C later in the night.

In Penticton:

High of 22 C with a mixture of sun and clouds and a 40 per cent chance of rain through the day. Dropping to about 15 C at night with rain continuing through to Sunday morning.

In case you missed it:

‘A real shame’: Kelowna MLA says factors behind Tolko mill closing should have been caught. Read more here.

Video of the day:

Hopefully, fall cleaning around the Okanagan goes better than this..

READ MORE: Okanagan realtor pledges $10,000 and unicorn tattoo for Special Olympics charity

READ MORE: Two killed on Vancouver Island after bus crashes carrying university students


Natalia Cuevas Huaico

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Interstellar visitor is reddish, new study finds – CBC.ca

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In a new study published in Nature Astronomy on Monday, astronomers are pulling back the curtain on some of the mysteries behind our solar system’s first confirmed interstellar comet.

The comet, 2I/Borisov, was discovered by amateur astronomer Gennady Borisov on Aug. 30, though its orbit was unknown.

But by the end of September, the International Astronomical Union’s Minor Planet Center confirmed that the comet came from beyond our solar system

Because Borisov is so distant — 420 million kilometres from Earth — it’s difficult to determine a lot of its characteristics. However, this new study, the astronomers were able to determine a few of its interesting qualities.

Using two telescopes, the Gemini North Telescope in Mauna Kea, Hawaii, and the William Herschel Telescope in La Palma, Spain, they were able to determine that the nucleus, or core, is roughly one kilometre in diameter. 

They also identified a short tail and an extended coma, or cloud of debris that gives comets their fuzzy appearance. And they determined its colour.

“We found this colour of the comet is almost the same as other colour of the typical comets in our solar system,” said co-author of the paper Piotr Guzik, an astronomer at the Astronomical Observatory at Jagiellonian University in Krakow, Poland. “It’s not red like Mars … it’s just a bit more red light in its spectrum than the blue light.”

In another study, researchers also found that Borisov contained cyanogen, which is made up of a carbon atom and a nitrogen atom that are bonded. It is a poisonous gas to us, but commonly found in comets.

Second interstellar visitor

Borisov is the second known object to come from another star system.

The first was 1I/’Oumuamua. It’s believed that it was an asteroid, however, it’s also been hypothesized that it did have some activity — called outgassing — that is similar to a comet’s.

This artist’s impression shows the first interstellar object, 1I/’Oumuamua. It was discovered two years ago by the Pan-STARRS 1 telescope in Hawaii. (M. Kornmesser/ESO)

While ‘Oumuamua was detected on its way out of the solar system, Borisov was detected on its way in, which means astronomers will be able to study this one for some time.

“The next year is going to be extremely exciting, as we will be able to follow 2I’s evolution as it zooms through our solar system,” said Olivier Hainaut, an astronomer at the European Southern Observatory, in a statement. “In comparison, we had only a few weeks to study ‘Oumuamua before it became too faint.”

So far, the Borisov findings suggest it isn’t very different from our own local comets, something that Guzik believes could shed light on exoplanets, which orbit other stars.

“Such objects are just part of other planetary systems. It was not until, I guess, around 1990 that we found the first planet systems around other stars, and now part of such a system is here,” Guzik said. “So we can investigate some material that left some planetary system and compare it to what we see here and probably learn something about the formation of other planetary systems.”

Though the recent study found cyanogen, Guzik said that he’s hopeful that, as the comet gets nearer the sun, astronomers will discover more about its composition.

“It will be very interesting to find out more, especially what’s driving its activity,” he said.

Borisov will reach perihelion — its closest approach to the sun — on Dec. 7, when it will be roughly 300 million kilometres away. 

Guzik also hopes that, eventually, astronomers will be able to determine its home star system.

“It would be really nice to know where it originated,” Guzik said. “If we could point to the star and say, ‘This is the star.'”

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Asteroid news: Did alien space rock dust cloud spark new life on Earth? – Express.co.uk

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Scientists have now posited an asteroid disintegration once blanketed Earth with dust millions of years ago. It is thought the cosmic event dramatically cooled Earth, triggering an ice age followed by significant increases of new animals. The work, led by Professor Birger Schmitz of Sweden’s Lund University, provides new insight into the impact of extraterrestrial events on Earth’s evolution.

The asteroid expert told the Observer: “We know about the 6 mile (10km) asteroid that crashed on Earth 67 million years ago and killed off the dinosaurs, but this event was very different.

“It occurred about 470 million years ago when an asteroid 3,000 times bigger than the dinosaur-killer was destroyed during a collision with another asteroid beyond the orbit of Mars.

“It filled the solar system with dust and caused a major dimming of sunlight falling on Earth.”

The theory is a reduction in radiation made the planet’s temperatures drop significantly.

READ MORE: Dashcam fireball footage shows space rock hurtle above Alberta

This triggered a succession of ice ages, meaning water froze, ice caps spread and sea levels dropped.

This created isolated shallow seas which were an ideal breeding ground for generating new species.

Cold water also holds more dissolved oxygen, which would also have boosted speciation.

Scientists are already aware ice ages appeared around this time and life underwent a spike in biodiversity, particularly in the oceans.

READ MORE: This is what would happen if an asteroid hits Earth

The first coral reefs began to grow then and peculiar tentacled predators called nautiloids first appeared.

This is called as the great Ordovician bio-diversification event (GOBE).

Scientists have argued over GOBE’s cause but now Professor Schmitz, who studying space dust particles in seabed sediments, believes it was triggered by asteroid dust clouds.

He said: “The sediments laid down at this time are rich in the isotope helium-3 – which they could only have picked up travelling through space. It is a crucial clue.”

READ MORE: NASA chief reveals nuclear ‘game changer’

Professor Rebecca Freeman, of the University of Kentucky, told Science how she agreed with the idea.

She said: “Other scientists have backed his idea. “It isn’t necessarily the answer to every question we have about GOBE, but it certainly ties together a lot of observations.”

Professor Schmitz’s research has also caused interest for another reason.

As the world warms dangerously, some scientists have proposed spreading a veil of dust hovering in space over the Earth, reflecting sunlight away from our overheating planet.

But the idea is controversial with critics because it could have unexpected side-effects.

Now evidence shows such an experiment occurred naturally 470 million years ago.

The result was a major change in our meteorology and the evolution of life here.

Professor Schmitz added: “It is certainly worth bearing in my mind in coming years.”

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Alien life possibly found on Mars in 1970s, ex-NASA scientist says – Fox News

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In a stunning op-ed, a former NASA scientist says he is convinced that the space agency “found evidence of life” on Mars in the 1970s.

In the article, Gilbert Levin, who worked on the Viking missions to the Red Planet during that decade, makes it clear that he believes data from the Labeled Release (LR) in 1976 was supportive of finding life.

“On July 30, 1976, the LR returned its initial results from Mars,” Levin wrote in the op-ed, entitled “I’m Convinced We Found Evidence of Life on Mars in the 1970s.”

“Amazingly, they were positive. As the experiment progressed, a total of four positive results, supported by five varied controls, streamed down from the twin Viking spacecraft landed some 4,000 miles apart.”

This artist’s impression shows how Mars may have looked about 4 billion years ago when almost half the planet’s northern hemisphere could have been covered by an ocean up to a mile (1.6 kilometers) deep in some places.
(ESO/M. Kornmesser)

NASA: ANCIENT MARS OASIS COULD HAVE SUPPORT LIFE

He continued: “The data curves signaled the detection of microbial respiration on the Red Planet. The curves from Mars were similar to those produced by LR tests of soils on Earth. It seemed we had answered that ultimate question.”

The LR, which was led by Levin, took samples of Martian soil that contained organic compounds and looked for carbon dioxide. Astonishingly, the results seemed to indicate that the carbon dioxide was “being regenerated, possibly by microorganisms as on Earth.”

Fox News has reached out to NASA for comment for this story.

However, Levin seemed to criticize the space agency for not following up on the LR findings, even if NASA concluded that it “found a substance mimicking life, but not life.”

“Inexplicably, over the 43 years since Viking, none of NASA’s subsequent Mars landers has carried a life detection instrument to follow up on these exciting results,” he continued. “Instead the agency launched a series of missions to Mars to determine whether there was ever a habitat suitable for life and, if so, eventually to bring samples to Earth for biological examination.”

NASA has made subsequent visits to Mars, including the InSight lander, which landed in November 2018. The Curiosity rover, which has been on Mars since August 2012, detected a surprising spike in the level of methane that it has not yet been able to explain.

Last November, NASA announced that it had picked a landing spot for its upcoming Mars 2020 mission, a rover that will not include “a life-detection test,” Levin wrote.

“With our current measurements, we have no way of telling if the methane source is biology or geology, or even ancient or modern,” said SAM Principal Investigator Paul Mahaffy of NASA’s Goddard Spaceflight Center in a June statement. On Earth, methane is produced both biologically and geologically.

Levin pleaded for the space agency to put “life detection experiments on the next Mars mission possible” to be more precise in their hunt for life, but in also keeping “with well-established scientific protocol.” He also wants an independent group of scientists to review the Viking LR data.

“Such an objective jury might conclude, as I did, that the Viking LR did find life,” Levin concluded. “In any event, the study would likely produce important guidance for NASA’s pursuit of its holy grail.”

The newly published op-ed is not the first time Levin has suggested that life was found on Mars. In 1997, he published “his conclusion that the LR had, indeed, discovered living microorganisms on the Red Planet,” according to his website.

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