Science!

[fred8615]

DNA From 'Lost European Prince' Solves a 200-Year-Old Conspiracy

Modern forensic techniques have put an end to a nearly 200-year-old conspiracy theory regarding a lost European prince, according to a new preprint paper.

www.sciencealert.com

 

[Optimus Prime]

Vast amounts of water could be trapped deep within the crust of Mars, scientists have said, raising fresh questions about the possibility of life on the red planet.

Scientists say that more than 3bn years ago, Mars not only had lakes and rivers but oceans on its surface – however, as the planet lost its atmosphere these bodies disappeared. All that is visible today is permafrost ice at the planet’s poles.

While it is thought some of the water was lost to space, research has suggested that is not the full story, and that water could have been incorporated into minerals, buried as ice, or even exist in liquid form deep within the planet’s crust.


Now scientists say their calculations suggest vast quantities of liquid water are to be found trapped within rocks about 11.5-20km below the Martian surface.

“Our liquid water estimate is more than the water volumes proposed to have filled possible ancient Martian oceans,” said Dr Vashan Wright, a co-author of the study from Scripps Institution of Oceanography at the University of California San Diego.……

New hope of finding life on Mars after indication of water, scientists say

Liquid amounting to a 1-2km-deep ocean may be frozen up to 20km below surface, calculations suggest

www.theguardian.com

 

[Tapxe]

Vast amounts of water could be trapped deep within the crust of Mars, scientists have said, raising fresh questions about the possibility of life on the red planet.

Scientists say that more than 3bn years ago, Mars not only had lakes and rivers but oceans on its surface – however, as the planet lost its atmosphere these bodies disappeared. All that is visible today is permafrost ice at the planet’s poles.

While it is thought some of the water was lost to space, research has suggested that is not the full story, and that water could have been incorporated into minerals, buried as ice, or even exist in liquid form deep within the planet’s crust.


Now scientists say their calculations suggest vast quantities of liquid water are to be found trapped within rocks about 11.5-20km below the Martian surface.

“Our liquid water estimate is more than the water volumes proposed to have filled possible ancient Martian oceans,” said Dr Vashan Wright, a co-author of the study from Scripps Institution of Oceanography at the University of California San Diego.……

New hope of finding life on Mars after indication of water, scientists say

Liquid amounting to a 1-2km-deep ocean may be frozen up to 20km below surface, calculations suggest

www.theguardian.com

 

[fred8615]

Archaeologists Say They've Just Solved The 400-Year-Old Mystery Of The Lost Colony Of Roanoke

This study is the first time physical evidence has been found to support the theory that the settlers moved on to Hatteras Island.

allthatsinteresting.com

 

[fred8615]

This 25,000-Year-Old Structure Is Made Of Mammoth Bones — And Experts Are Baffled

This isn’t the first “mammoth house” found at the Russian excavation site — but it is the oldest and largest.

allthatsinteresting.com

 

[fred8615]

Collision Between Milky Way and Andromeda Far From Inevitable, Study Shows

There's a 50% chance that the predicted head-on collision will end in a galactic merger, according to a new study.

gizmodo.com

 

[Optimus Prime]

Cancer rates in men are expected to skyrocket in the next few decades, a new study reveals.

Cancer rates in men are projected to jump by 84 percent from 2022 to 2050, while cancer deaths are expected to increase by 93.2 percent over the same time frame, according to the peer-reviewed study.

The findings were published on Monday in the American Cancer Society’s research journal, CANCER.


This gender disparity is in part because men are exposed more often to risk factors, such as smoking and drinking alcohol, according to the study. Men are also exposed to more cancer-causing workplace hazards, such as harmful chemicals, radiation and asbestos, than women, according to the study.……

Cancer rates in men will increase by a whopping 84% by 2050, researchers say

The research team’s recommendations included improving early detection programs for testicular and prostate cancers

www.independent.co.uk

 

[Zztop]

What a bioluminescent petunia had to teach me

I bought a glowing plant. It led me down a rabbit hole of radiant mushrooms, 19th century experiments and a modern rivalry between scientists in Russia and the Americas.

knowablemagazine.org

 

[fred8615]

Unusual rotation of a nearby star has never been seen before

A new study reveals that the rotation of a nearby star, V889 Herculis, is markedly different from that of our Sun.

www.earth.com

 

[Optimus Prime]

When Voyager 1 launched in 1977, it began an indefinite journey into space, serving as an envoy for humankind. Today, it's the farthest human-made object from Earth, traveling over 15 billion miles from the sun in interstellar space.

If you were out there, where everything we know is so far away and life itself is foreign, would you even be within the influence of our sun? From such a distance, could you actually see anything out there, or is it all eternal blackness?

A user on the forum Reddit asked that very question: If we were somehow able to stand next to Voyager 1 in space, would we be able to see it?

We asked Michael Zemcov, an experimental astrophysicist and professor at Rochester Institute of Technology, to explain it, so you don't have to dust off your calculator to do the math yourself.

"Oh, gosh, that's, so this is a really interesting question," Zemcov told Insider.

To start, he said even though both Voyager 1 and 2 are way out in space, beyond all major planets, it's still pretty bright.

He took us through the math for Voyager 1.

First, you must compare Voyager's distance to the distance between Earth and the sun. Then, you use that distance to calculate what the light intensity would be that far away from the sun.

This leaves you with an estimate of about 25,000 times fainter than the brightness during the day on Earth. That's still about 15 times brighter than the light Earth gets during a full moon on a clear night, Zemcov said.

In that much light, you would definitely be able to see the side of the probe facing the sun in detail, though you might not be able to see all of its colors, he said.

Further, you'd probably be able to read a book out there.

MSN

www.msn.com

 

[Optimus Prime]

Scientists may have finally found where the object that wiped out the dinosaurs came from.

The mass extinction event that occurred 66 million years ago – the most recent on Earth – came about when a rare kind of asteroidcollided with Earth, researchers say.

In that incident, about 60 per cent of the Earth’s species including all of its non-avian dinosaurs were wiped out. Researchers believe that it led to a horrific period in the planet’s history, during which its planets were lit on fire, the Earth was covered in ash and the climate would have turned deadly.

And it all began in the distant outer solar system, beyond Jupiter. There, a C-type asteroid formed that would give rise to what scientists call the Chicxulub impactor, which crashed into Earth and left the vast crater after which it is named.

Scientists say the discovery should help solve long arguments about the history of the Earth, as well as the objects that have collided with it from elsewhere in space.

They came to those conclusions after looking at samples taken from around the same period in which the mass extinction event happened, between the Cretaceous and Paleogene eras. They also looked at samples from five other asteroid impacts taken in the last 541 million years, as well as ancient remnants from impacts billions of years ago.

Layers of the Earth from around the same period tend to be rich in platinum group elements, or PGEs, such as iridium, ruthenium, osmium, rhodium, platinum, and palladium. Those elements are generally rare on Earth, but common in meteorites, though they appear to have spread widely during the collision because they are found right across the Earth.…….

Scientists finally find where the object that wiped out the dinosaurs came from

‘Chicxulub’ object seems to have come from out beyond Jupiter

www.independent.co.uk

 

[Optimus Prime]

When Voyager 1 launched in 1977, it began an indefinite journey into space, serving as an envoy for humankind. Today, it's the farthest human-made object from Earth, traveling over 15 billion miles from the sun in interstellar space.

If you were out there, where everything we know is so far away and life itself is foreign, would you even be within the influence of our sun? From such a distance, could you actually see anything out there, or is it all eternal blackness?

A user on the forum Reddit asked that very question: If we were somehow able to stand next to Voyager 1 in space, would we be able to see it?

We asked Michael Zemcov, an experimental astrophysicist and professor at Rochester Institute of Technology, to explain it, so you don't have to dust off your calculator to do the math yourself.

"Oh, gosh, that's, so this is a really interesting question," Zemcov told Insider.

To start, he said even though both Voyager 1 and 2 are way out in space, beyond all major planets, it's still pretty bright.

He took us through the math for Voyager 1.

First, you must compare Voyager's distance to the distance between Earth and the sun. Then, you use that distance to calculate what the light intensity would be that far away from the sun.

This leaves you with an estimate of about 25,000 times fainter than the brightness during the day on Earth. That's still about 15 times brighter than the light Earth gets during a full moon on a clear night, Zemcov said.

In that much light, you would definitely be able to see the side of the probe facing the sun in detail, though you might not be able to see all of its colors, he said.

Further, you'd probably be able to read a book out there.

MSN

www.msn.com

This article doesn't say but now I'm curious how far out you'd have to be for it to be super dark in space

 

[SWJJ]

This article doesn't say but now I'm curious how far out you'd have to be for it to be super dark in space

I dont think it would ever be super dark anywhere in space. If they still have that much light intensity past the heliosphere (compared to 15 times more the amount of light earth sees on a full moon night) and Alpha Centauri only being about 4 light years away and that Rigil Kentaurus (also known as Alpha Centauri A) is 50% bigger and Brighter than our own sun, I think you would have light from neighboring star systems before you get far enough away to lose light from the sun (or your closest star)

Now, as you begin to enter voids that have mass and matter free floating, like gas clouds and nebulas, it may become completely dark, but that's not because you are so far away from the light source but because you are being surrounded by light absorbing/blocking matter.

 

[Tapxe]