Science & Technology
Ceres, once thought to be an asteroid, is the largest object in the asteroid belt running between Mars and Jupiter and is the only dwarf planet in the inner Milky Way.
NASA's Dawn space probe has been in orbit around Ceres since March 2015.
"Images from Dawn show that landslides, many of which are similar to those seen on Earth, are very common on Ceres, and further the case that Ceres has a lot of water ice involved in its structure," said Britney Schmidt, an associate of the Dawn science team and assistant professor at Georgia Tech, who led the study.

This composite image shows the gravitationally lensed type Ia supernova iPTF16geu, as seen with different telescopes. The background image shows a wide-field view of the night sky as seen with the Palomar Observatory located on Palomar Mountain, California. Far Left Image: Captured by the Sloan Digital Sky Survey, this optical light observation shows the lens galaxy and its surrounding environment in the sky. Center Left Image: Captured by the Hubble Space Telescope, this is a 20x zoom infrared image of the lens galaxy. Center Right Image: Captured by the Hubble Space Telescope, this 5x optical light zoom reveals the four gravitationally lensed images of iPTF16geu. Far Right Image: Captured by the Keck Telescope, this infrared observation features the four gravitationally lensed images of iPTF16geu and the gravitational "arc" of its host galaxy.
This phenomenon called 'gravitational lensing' is an effect of Einstein's Theory of Relativity—mass bends light. This means that the gravitational field of a massive object like a galaxy can bend light rays that pass nearby and refocus them somewhere else, causing background objects to appear brighter and sometimes in multiple locations. Astrophysicists believe that if they can find more of these magnified Type Ia's, they may be able to measure the rate of the Universe's expansion to unprecedented accuracy and shed some light on the distribution of matter in the cosmos.
Fortunately, by taking a closer look at the properties of this rare event, two Lawrence Berkeley National Laboratory (Berkeley Lab) researchers have come up with a method a pipeline for identifying more of these so-called "strongly lensed Type Ia supernovae" in existing and future wide-field surveys. A paper describing their approach was recently published in the Astrophysical Journal Letters. Meanwhile, a paper detailing the discovery and observations of the 4 billion year old Type Ia supernova, iPTF16geu, was published in Science on April 21.
"It is extremely difficult to find a gravitationally lensed supernova, let alone a lensed Type Ia. Statistically, we suspect that there may be approximately one of these in every 50,000 supernovae that we identify," says Peter Nugent, an astrophysicist in Berkeley Lab's Computational Research Division (CRD) and an author on both papers. "But since the discovery of iPTF16geu, we now have some thoughts on how to improve our pipeline to identify more of these events."
The snap was captured by the JunoCam on March 27, as the spacecraft completed its latest orbit, at a distance of about 12,400 miles (20,000km) from the massive planet.

A fracking site as seen from the air near Fort St. John, BC.
The largest earthquake ever triggered by hydraulic fracturing in British Columbia followed industry's use of large volumes of water and occurred during a fracking-triggered swarm of 676 earthquakes between 2014 and 2015, a new study has found.
The earthquake, triggered by the fracking activities of Malaysian-owned Progress Energy, registered 4.6 magnitude. It was about four kilometres underground and about 100 kilometres northwest of Fort St. John in the northern Montney formation. The earthquake could be felt nearly 180 kilometres away from the epicentre.
The study, published by the Bulletin of the Seismological Society of America this month, ruled out wastewater injection or pumping methane for underground storage as the cause of the earthquake.
"We found that occurrence of local events is better correlated with hydraulic fracturing operations," it concluded. (Record-breaking seismic activity in other areas, like Oklahoma, has been triggered by mammoth wastewater injections and to a lesser degree, hydraulic fracturing. One damaging 5.8 magnitude quake in 2016 even changed water levels in an Oklahoma creek.)
In taking on the monopoly, yet cash-burning premium electric car juggernaut that is Tesla, the key for leading Chinese electric vehicle start-ups such as Future Mobility, WM Motor and Singulato Motors, is that they will produce their cars locally, making them better able to match the Model 3's price, Reuters notes. Tesla is expected to price its Model 3 from $35,000 in the United States. Buyers in China would expect to add 25% to that in import tariffs.
The Chinese strategy is simple: beat the Model 3 in China by making their cars more premium but cheaper than Tesla's mass-market all-electric battery car.
Getting a car to drive this way was an impressive feat. But it's also a bit unsettling, since it isn't completely clear how the car makes its decisions. Information from the vehicle's sensors goes straight into a huge network of artificial neurons that process the data and then deliver the commands required to operate the steering wheel, the brakes, and other systems. The result seems to match the responses you'd expect from a human driver. But what if one day it did something unexpected—crashed into a tree, or sat at a green light? As things stand now, it might be difficult to find out why. The system is so complicated that even the engineers who designed it may struggle to isolate the reason for any single action. And you can't ask it: there is no obvious way to design such a system so that it could always explain why it did what it did.
The agency's Mars Reconnaissance Orbiter (MRO) captured the intriguing mesa, which measures 0.4 kilometers, in the "extensively fractured" Noctis Labyrinthus region on the western end of huge Valles Marineris valley.
"Heavily eroded, with clusters of boulders and sand dunes on its surface, this layered mesa is probably comprised of sedimentary deposits that are being exhumed as it erodes. The layers themselves are visible as faint bands along the lower left edge of the mesa," NASA said.
The creation began inside a lab at Washington State University (WSU), when physicists cooled rubidium atoms to just slightly above absolute zero. This created what is known as a Bose-Einstein condensate.
When particles are in this state, they move extremely slowly and behave like waves. They synchronize and move in unison as 'superfluid,' which flows without losing energy, according to a WSU press release.
Function, a video series from Fractal NYC, outfitted two piano players with special glasses that track the movement of their eyes. Professor Daniel Beliavsky is a professional pianist and Charlotte Bennett is his student. Since Beliavsky is more experienced, he's more comfortable with the keyboard and looked at the sheet music more than his hands, whereas Bennett spent more time looking down at the keys. Impressively, Beliavsky is able to look ahead to where his hands will be in a few seconds.
The drug developed by Russian chemists was used to treat white spot syndromevirus (WSSV) in shrimps, the university press service reported. Throughout the world, outbreaks of this disease have wiped out entire populations at many shrimp farms within days, and the epidemic has been raging in Mexico for several years. There have been several attempts to cure the disease, but until now nothing has worked.
One farm in Mexico was offered to try the new Russian cure. At first, several young infected shrimps were injected with the drug. Just 96 hours later, shrimp survival was over 90%.
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Comment: It's not just the earthquakes; wastewater from fracking is polluting water supplies and literally making people sick: