A Galactic Rainbow

End of fillings in sight as scientists find Alzheimer's drug makes teeth grow back

Fillings could be consigned to history after scientists discovered that a drug already trialled in Alzheimer's patients can encourage tooth regrowth and repair cavities.

Researchers at King’s College London found that the drug Tideglusib stimulates the stem cells contained in the pulp of teeth so that they generate new dentine – the mineralised material under the enamel.

Teeth already have the capability of regenerating dentine if the pulp inside the tooth becomes exposed through a trauma or infection, but can only naturally make a very thin layer, and not enough to fill the deep cavities caused by tooth decay.

But Tideglusib switches off an enzyme called GSK-3 which prevents dentine from carrying on forming.

Scientists showed it is possible to soak a small biodegradable sponge with the drug and insert it into a cavity, where it triggers the growth of dentine and repairs the damage within six weeks.

The tiny sponges are made out of collagen so they melt away over time, leaving only the repaired tooth.

December 17, 1965 – Stunning images of Earth captured by the astronauts of Gemini 7 as their craft raced around the planet.

(NASA/ASU)

SpaceX plans to send two people around the Moon

Two private citizens approached the company, are ‘very serious’ about the trip

SpaceX has plans to send two private citizens around the Moon, CEO Elon Musk announced today.

It will be a private mission with two paying customers, not NASA astronauts, who approached the company. The passengers are “very serious” about the trip and have already paid a “significant deposit,” according to Musk. The trip around the Moon would take approximately one week: it would skim the surface of the Moon, go further out into deep space, and loop back to Earth — approximately 300,000 to 400,000 miles.

The plan is to do the trip in the second quarter of 2018 on the Crew Dragon spacecraft with the Falcon Heavy rocket, which is due to do its maiden launch this summer. Of course, Musk is well-known for his unrealistic deadlines — in 2011, he promised to put people in space in just three years.

The two people going on the trip, who weren’t named, already know each other. They will begin initial training for the trip later this year. Musk declined to comment on the exact cost of the trip, but said it was “comparable” or a little more than the cost of a crewed mission to the International Space Station. For context, one ticket on the Russian Soyuz rocket costs NASA around $80 million.

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Researchers Invent Sponge That Could Transform Oil Spill Cleanup

It can soak up 90 times its weight in oil.

Researchers have designed a new material that could completely revolutionize the way oil spills are cleaned up.

When the Deepwater Horizon spill happened in 2010, the cleanup presented an unexpected challenge. Millions of gallons of oil didn’t collect on the surface, where it could be skimmed off or burned, but instead was drifting through the ocean below the waves.

Scientists at the U.S. Department of Energy’s Argonne National Lab have invented a material that could prevent a similar situation in future spills.

The foam, called Oleo Sponge, can soak up 90 times its own weight in oil before it needs to be wrung out to be reused — and the oil can be recovered.

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Scientists Just Found One of the Most Promising Malaria Vaccine Targets to Date

This is how we stop malaria grabbing onto our blood cells.

In spite of a decade of intense research, we still don’t have a commercially available vaccine for malaria.

While a candidate vaccine is being piloted next year, scientists have found a potentially more promising target in the bridge malaria makes with our red blood cells, which could lead to a more effective, cheaply made vaccine.

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In the next 3 weeks, Canada will make a decision that could save the bees for good

We won't see another opportunity like this again. Let's seize it.

um guys?

canada is currently considering banning imidacloprid, which is apparently “one of the most widely used bee-killing pesticides in the world”. this seems pretty huge, so if you’ve got two seconds, add your name to the list! as of posting this link, they need just over 8,000 more signatures by february 21!

Cloud Chambers: Visualizing Radiation 

The cloud chamber, also known as the Wilson chamber, is a particle detector used for detecting ionizing radiation.

In its most basic form, a cloud chamber is a sealed environment containing a supersaturated vapor of water or alcohol. When a charged particle (for example, an alpha or beta particle) interacts with the mixture, the fluid is ionized. The resulting ions act as condensation nuclei, around which a mist will form (because the mixture is on the point of condensation). 

The high energies of alpha and beta particles mean that a trail is left, due to many ions being produced along the path of the charged particle. These tracks have distinctive shapes, for example, an alpha particle’s track is broad and shows more evidence of deflection by collisions, while an electron’s is thinner and straight. -(x)

More science and gifs on my blog: rudescience Gif made from: This video by The Royal Institution References: (x), (x). 

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a “hypothesis”, or a “science headcanon”,

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