Science, Space, & Robotics - Page 392

A team of astronomers have managed to figure out how the biggest and brightest explosions in the universe take place and why.

The explosions we are talking about here is gamma-ray bursts that are ejected from a star. These gamma-ray bursts have been recorded numerous times, but now scientists and astronomers have worked out why and how they are so bright and big. Researchers from the University of Warwick in the UK found that tidal effects such as the Moon's position next to Earth can cause this gigantic cosmic explosions.

The team of researchers examined thousands of simulated models of binary star systems, which are solar systems that have two stars caught in each others orbit. The examination led the researchers to believe that the orbiting of these stars can cause gamma-ray bursts to take place. When a star that's ten times bigger than our sun explodes it goes supernova and collapses either into a neutron star or a black hole.

The research which has come out of New York University's Grossman School of Medicine has found that an extremely large number of cases of IQ point theft in children.

The study, which was published in the journal of Molecular and Cellular Endocrinology, measured the effects of children being exposed to different toxins such as lead, mercury, pesticides, and polybrominated diphenyl ethers. The study examined the effects of these toxins in children between 2001 and 2016 and found that lead exposure resulted in a loss of 78 million IQ points. Pesticides followed behind the lead with a loss of 27 million IQ points and finally, mercury with a loss of 2.5 million IQ points.

The study found over 738,000 cases of intellectual disability, with a total loss of 162 million IQ points. So how did the children become exposed to these toxins? Flame retardants, which are polybrominated diphenyl ethers, are found in common household objects such as furniture items, electronics, and children's clothing. Pesticides can be found on fresh produce or picked up at restaurants that have incorrectly washed their produce, and lead can be found in older homes with old paint or even playgrounds.

Microsoft has announced a new climate change imitative that plans on saving the planet from the ever-growing concerns of climate change.

In Microsoft's announce the company states that it plans to be "carbon negative" by the year 2030 and on top of that it plans on removing any carbon its created as a company since its fruition in 1975. The company has said that it will be pledging $1 billion to its "climate innovation fund" to assist its "aggressive program" aiming towards minimalizing climate affects. Microsoft CEO Satya Nadella said, "The scientific consensus is clear. The world, today, is confronted with an urgent carbon crisis. If we don't curb emissions and the temperatures continue to climb, the science tells us the results will be devastating."

Nadella continues and says, "Each of us is going to need to take action, and that includes businesses. No one company can solve this macro challenge alone, but as a global technology company, we have a particular responsibility to do our part. That's why today we're announcing an ambitious new plan to help address the sustainability of our planet." By Microsoft's "carbon negative" definition, the company plans on removing more carbon that it's emitting per year.

A mystery virus broke out in the Chinese city of Wuhan in the last few days, with cases now being reported in the hundreds, evidence is suggesting that it's being transmitted "human-to-human".

The virus outbreak was reported back in December and was linked to a live-animal market in Wuhan called the South China Seafood Wholesale Market. Researchers who are investigating the origin of the virus confirmed that the virus was a never-before-seen coronavirus, which is in the same family as the Severe Acute Respiratory Syndrome (SARS). The researchers suspect that the virus originated in the animals at the market and found viable human hosts, which then eventuated into the now current outbreak.

At the moment, China's state-run media has said that 218 cases of the virus confirmed, while that number seems low it's an important factor to remember is that China controls their media, so this number is likely much higher. According to SARS expert Zhong Nanshan, "Now we can say it is certain that it is a human-to-human transmission phenomenon. We expect the number of infected cases will increase over the Lunar New Year travel period, and we need to prevent the emergence of a super-spreader of the virus".

SpaceX is on its way to ferrying humans to the International Space Station, and the private space exploration company has just reached a new milestone.

SpaceX has just reached a new milestone in their quest to be able to ferry humans back and forth from International Space Station to Earth. Just a couple days ago, the Space exploration company live-streamed an in-flight test of Crew Dragon's launch escape system at Launch Complex 39A at NASA's Kennedy Space Center in Florida.

The above video (which I have skipped to 40 seconds before the initial launch) shows the Dragon capsule attached to SpaceX's Falcon 9 rocket. As the timer ticks down and the launch sequence begins, we can see Falcon 9 blasting off from its launch platform. As expected, the Falcon 9 rocket broke apart and exploded right after the Dragon detached and begun free-falling back down to Earth. Parachutes were then deployed on its re-entry before it safely landed in the Atlantic ocean.

Astronomers have located something they have never done before, an asteroid that is orbiting the Sun closer than Venus.

Astronomers at Caltech Zwicky Transient Facility have found this new asteroid, which has now been called 2020 AV2. The asteroid is estimated to be anywhere between 1 - 3 kilometers in diameter, or around 2 miles. 2020 AV2 is a class of asteroid called Ataris, or Interior-Earth Objects (IEOs). These are known objects that are orbiting inside Earth's, and at the moment, astronomers have only located 21 of them. Since 2020 AV2 is orbiting inside of Venus', it's the first 'Vatira' - the 'V' stands for Venus.

So how did the asteroid manage to get there without being captured by Venus' gravitational pull? According to Tom Prince is a Professor of Physics at Caltech said, "An encounter with a planet probably flung the asteroid into Venus's orbit. It's the opposite of what happens when a space mission swings by a planet for a gravity boost. Instead of gaining energy from a planet, it loses it."

At the center of our Milky Way galaxy, we have a supermassive black hole called Sagittarius A*, and astronomers have found some weird objects floating around it.

The new research has been published in the journal Nature and has indicated that astronomers have located some objects that were originally believed to be gasses. The strange part about this though, is that astronomers observed the objects and found that they moved like stars. The objects which have been titled G1 and G2 have been observed getting close to the black hole and stretching into an elongated shape.

Andrea Ghez, UCLA's Lauren B. Leichtman and Arthur E. Levine Professor of Astrophysics and director of the UCLA Galactic Center Group, said, "At the time of closest approach, G2 had a really strange signature. We had seen it before, but it didn't look too peculiar until it got close to the black hole and became elongated, and much of its gas was torn apart. It went from being a pretty innocuous object when it was far from the black hole to one that was really stretched out and distorted at its closest approach and lost its outer shell, and now it's getting more compact again."

Scientists have done the unthinkable; they have combined frog embryo stem cells with robotics and created the first 'living' robot.

Researchers from the University of Vermont (UVM) and Tufts University have used stem cells from frog embryos and combined them with tiny robots to create "xenobots". The robots are technically alive, and they measure in at about a millimeter-wide, can self-heal if sliced in half, can work cooperatively with other live robots, and even swim.

According to Joshua Bongard, a computer scientist and robotics expert at UVM and one of the leads on the research, said, "These are novel living machines. They're neither a traditional robot nor a known species of animal. It's a new class of artifact: a living, programmable organism." So how did scientists and researchers do this? Using a supercomputer, the team at UVM ran an algorithm to find out the best design, then the team at Tufts implemented the design with the stem cells from frog embryos. If you are after more information on this topic, check out this article here.

Astronomers have peered out into the vastness of space and located two more potentially habitable alien planets.

The two new worlds that could be our new homes some day are called 'GJ180 d' and 'GJ229A c' and orbit two red dwarf stars 'GJ229A' and 'GJ180', respectively. Both of the planets are located in the habitable zone of the red dwarf stars and are not total locked. Tidal locking is common for planets found next to red dwarfs, but it isn't good for survivability or an overall habitable planet as it can render the days extremely hot and the nights freezing.

Fabo Feng, of the Carnegie Institution for Science in Washington, D.C, said the planet 'GJ180 d' has a temperature close to Earths, so much so that the planet can be called a super-Earth. 'GJ180 d' is actually larger than Earth as well, its estimated that the exoplanet has 7.5 times the mass of Earth. "GJ180 d is the nearest temperate super-Earth to us that is not tidally locked to its star, which probably boosts its likelihood of being able to host and sustain life." If you are after more information check out this link here.

NASA's Cassini satellite ended its 13-year mission in September 2017, but scientists and researchers are analyzing some of the final data sets sent back from it.

The new data was analyzed, and two new studies have been published in Geophysical Research Letters and JGR: Space Physics detailing some new understanding regarding Saturn's rings. For those that don't know, Cassini's main mission was to observe Saturn, and it did so very well. Throughout the course of its life, it gave scientists numerous vital pieces of information that helped piece together our now present understanding of Saturn.

Cassini was moved to an orbit that brought it closer to Saturn than ever before, and at this length, scientists and researchers were able to obtain images of Saturn's ultraviolet auroras at some never before seen resolution. So what's Saturn's aurora? Saturn's auroras are generated by the interaction between the solar wind from the sun, which shoots out energized particles, and Saturn's rapidly rotating magnetic field. The auroras are found at the planet's poles and are known to flash and pulsate at different speeds.